Exodus 19 — A Kingdom of Priests at the Mountain of Fire

Today’s Passage: Exodus 19

Of all the mountains in Scripture, this is the one before which I would have you stand very still, for we have come at last to Sinai, and everything the book of Exodus has been moving toward now gathers here in fire and smoke. Three months out of Egypt, the ransomed slaves pitch their tents at the foot of a mountain, and the God who split the sea for them begins to speak. His first words are the tenderest a rescued people ever heard: you have seen what I did to Egypt, and how I carried you on eagles’ wings and brought you to Myself. And out of that tenderness comes an offer almost too large to take in, that if they will keep His covenant they shall be His treasured possession out of all the earth, a kingdom of priests and a holy nation. Yet in the very same chapter, this God who stoops so low to gather them tells them to wash their clothes, to keep back from the mountain on pain of death, and then He comes down in fire and thunder and the long blast of a trumpet, until the whole mountain quakes and the people tremble in the camp. Hold both of these together as you read, and do not let go of either, because this is the God we worship: the God who carries His own on eagles’ wings, and the God before whose holiness a mountain shakes.

As you read, hold this: The God who carried His people on eagles’ wings and made them His treasured possession is the same God who is holy beyond all approach.

Exodus 19:1-2 (BSB)

¹ In the third month, on the same day of the month that the Israelites had left the land of Egypt, they came to the Wilderness of Sinai. ² After they had set out from Rephidim, they entered the Wilderness of Sinai, and Israel camped there in front of the mountain.

Notice how carefully the Bible marks the time, on the very day of the third month since they left Egypt, for God is bringing them to a destination He appointed long before they ever set out. This is not a weary company wandering into any old valley by chance. This is the keeping of a promise. Back at the burning bush God had told Moses that the sign of his sending would be this, that he would bring the people out and they would worship God on this very mountain, and now here they are, camped in front of it. The long road from the brick pits has led, step by step, exactly where God said it would.

And see where Israel finally comes to rest: in front of the mountain. They have marched from Rephidim, from the place of thirst and the war with Amalek, and now they halt and pitch their tents beneath the great height of Sinai. For the first time in their journey they are not moving on. They have arrived at the meeting place, and there they will stay for many long months while God gives them His law and His covenant. Sometimes God brings His people through the hard miles of the wilderness not to leave them wandering but to bring them at last to the foot of the mountain, where He means to meet with them and make them His own.

Exodus 19:3-6 (BSB)

³ Then Moses went up to God, and the LORD called to him from the mountain, “This is what you are to tell the house of Jacob and explain to the sons of Israel: ⁴ ‘You have seen for yourselves what I did to Egypt, and how I carried you on eagles’ wings and brought you to Myself. ⁵ Now if you will indeed obey My voice and keep My covenant, you will be My treasured possession out of all the nations—for the whole earth is Mine. ⁶ And unto Me you shall be a kingdom of priests and a holy nation.’ These are the words that you are to speak to the Israelites.”

Here we come to the beating heart of the chapter, and I would have you slow down and take each phrase as you would sip something too rich to swallow at once. Before God asks a single thing of Israel, He reminds them of what He has already done. You have seen for yourselves what I did to Egypt, He says, and how I carried you on eagles’ wings and brought you to Myself. What a picture that is. A great eagle does not carry its young in its talons, gripped and dangling; the old writers loved to say it bears them up on its own broad wings, so that any arrow aimed at the fledgling must pass through the parent first. That is how God speaks of the exodus. He did not merely command them out of Egypt from a distance; He bore them, He carried them, He caught them up out of the reach of every danger and brought them home, and the destination He names is the most tender word in the verse: He brought them to Himself.

And only then, on the ground of all that grace, comes the offer. Now if you will indeed obey My voice and keep My covenant, God says, you will be My treasured possession (סְגֻלָּה) sĕgullāh, pronounced seg-oo-LAH. Strong's H5459, a treasured possession, special treasure, prized property. This is a warm and precious word, and it is worth turning over slowly. Segullah does not mean simply property in general, the way a man might own a field or a flock. It means the special treasure, the personal wealth a king keeps back for himself out of all his holdings, the jewels laid up in his own private store because they are dearest to him. When God calls Israel His segullah out of all the nations, He is not saying merely that they belong to Him, for He has just said the whole earth is His. He is saying that out of everything He owns, He has set His heart on these, that they are His prized and cherished treasure, held close and kept for Himself. And here is the wonder a Christian cannot read past. Long centuries later, the apostle Peter reached back and took this very word and laid it on the church, telling scattered and suffering believers that they are a chosen people, a royal priesthood, a holy nation, a people for God’s own possession. The love that gathered slaves at Sinai is the same love that gathers sinners now, and everyone who belongs to Christ is, in the eyes of the God who owns all things, His treasured possession still. out of all the nations. Sit with the wonder of it. The God who says in the same breath that the whole earth is His, who owns every nation and every star, stoops to choose this one people and to call them His treasure, His own peculiar and precious possession. It is not that He needed them; He owns everything. It is that He set His love on them freely, and out of all the wealth of the whole world He points to a company of former slaves and says, these are Mine, My treasure, My own.

Then He lifts them higher still, to a calling almost too high to bear: you shall be a kingdom of priests and a holy nation. A priest is one who stands between God and others, who draws near to God on behalf of those who cannot, and God says He will make the whole nation into that. Israel was to be, among all the peoples of the earth, the one nation that knew the living God and made Him known, a kingdom where every member was meant to be a priest, standing before God for the sake of a watching world. It is a staggering thing to say over a people barely three months free from the whip, and it tells you what grace intends: not merely to rescue us from our chains but to raise us up into a holy calling, near to God and useful to Him, a treasured people set apart for His own.

Exodus 19:7-8 (BSB)

⁷ So Moses went back and summoned the elders of the people and set before them all these words that the LORD had commanded him. ⁸ And all the people answered together, “We will do everything that the LORD has spoken.” So Moses brought their words back to the LORD.

Moses carries God’s offer down the mountain and lays it before the elders, and through them before all the people, holding nothing back, setting out every word the LORD had spoken. And the people answer together, with one voice, in a great and eager promise: we will do everything that the LORD has spoken. There is something moving in that ready shout of yes, the whole camp lifting its voice as one to bind itself to the God who has loved them, and God does not despise their willingness. It is good and right that a rescued people should long to obey the God who saved them.

And yet, if we read on in the story of Israel, we know how soon and how badly that promise would be broken, for within a few short chapters this very people would be dancing around a golden calf. I do not say that to mock their vow, but to teach us something about ourselves. The heart that says we will do everything means it truly in the moment, and still cannot make itself good by wanting to. Israel’s quick promise, so sincere and so soon shattered, is the whole reason the law they were about to receive could never finally save them, and the whole reason we needed a better covenant still to come, in which God would not only tell His people what to do but would write His own law upon their hearts and give them a new spirit to keep it.

Exodus 19:9 (BSB)

⁹ The LORD said to Moses, “Behold, I will come to you in a dense cloud, so that the people will hear when I speak with you, and they will always put their trust in you.” And Moses relayed to the LORD what the people had said.

God tells Moses how He means to come, and it is a mercy wrapped in mystery. I will come to you in a dense cloud, He says, in a thick darkness that hides even as it reveals. Why a cloud? Because the people could not bear to look upon God unveiled and live, and so in His kindness He shrouds His glory, coming near enough to be heard while hiding Himself enough to be survived. The cloud is not God keeping His distance. It is God drawing as close as a holy God can safely draw to a sinful people, veiling the fullness of a glory that would otherwise consume them.

And notice the reason God gives for coming this way, that the people will hear when He speaks with Moses, and so will always put their trust in him. God is not only giving Israel His law; He is confirming His servant before their eyes, letting the whole nation hear with their own ears that Moses truly speaks for God, so that they will follow him through all the hard years ahead. It is a tender providence. God knows His people will need a mediator they can trust, and He takes care to give them one they have every reason to believe.

Exodus 19:10-13 (BSB)

¹⁰ Then the LORD said to Moses, “Go to the people and consecrate them today and tomorrow. They must wash their clothes ¹¹ and be prepared by the third day, for on the third day the LORD will come down on Mount Sinai in the sight of all the people. ¹² And you are to set up a boundary for the people around the mountain and tell them, ‘Be careful not to go up on the mountain or touch its base. Whoever touches the mountain shall surely be put to death. ¹³ No hand shall touch him, but he shall surely be stoned or shot with arrows—whether man or beast, he must not live.’ Only when the ram’s horn sounds a long blast may they approach the mountain.”

Now God begins to prepare the people to meet with Him, and every instruction teaches the same great lesson, that you do not come carelessly into the presence of the holy God. Consecrate them, He says, set them apart (קָדַשׁ) qādash, pronounced kah-DASH. Strong's H6942, to set apart, consecrate, make holy. This word runs like a golden thread all through the chapter, though our English translations wear it in different clothes. It means to set apart, to consecrate, to treat as holy, to mark off from the common and dedicate to God. It is the word behind God’s command to “consecrate” the people, behind the charge that the priests must “consecrate themselves,” and behind Moses’ reminder that God told them to “set apart as holy” the mountain itself. To be holy, in the Bible’s mind, is first of all to be set apart, marked off from ordinary use and given wholly over to God. The mountain was made holy because God came down upon it; the people were made holy because they were called to draw near to Him. And this is the very heart of what God said He wanted Israel to be, a holy nation, a people set apart out of all the peoples of the earth for Himself. The God who is holy makes holy the people He draws near, and that calling has never changed. Those whom God has claimed as His treasured possession He also sets apart, consecrated and marked off, to belong wholly to Him. , and let them wash their clothes and make themselves ready, for on the third day the LORD will come down in the sight of all the people. The washing of the garments was an outward sign of an inward truth, that a people who would draw near to a holy God must be made clean, must be set apart from the ordinary and the defiled. God was not being fussy about laundry. He was writing His holiness into their very bodies, teaching them through cloth and water that His nearness is not to be treated as a common thing.

And then comes the boundary, the line drawn around the mountain that no one may cross. Be careful, God warns, not to go up on the mountain or even to touch its base, for whoever touches it shall surely die. We may find that severe until we remember what is at stake. The infinitely holy God is about to descend upon that mountain, and for sinful flesh to blunder unbidden into that blazing holiness would be like dry straw thrown into a furnace. The boundary is not God keeping His people out to be cruel; it is God fencing off the fire to keep them alive. Grace has drawn them near, but holiness still sets the terms of the nearness, and only when the ram’s horn sounds its long blast may they come. Even our approach to God is on His terms and at His summons, never on our own.

Exodus 19:14-15 (BSB)

¹⁴ When Moses came down from the mountain to the people, he consecrated them, and they washed their clothes. ¹⁵ “Be prepared for the third day,” he said to the people. “Do not draw near to a woman.”

Moses comes down and does exactly as God commanded, setting the people apart and seeing to it that they wash their clothes and ready themselves for the third day. And he adds a further word of consecration, that even the ordinary and good intimacies of married life were to be laid aside for these solemn days, so that the whole camp might give itself wholly and undistracted to the coming of God. There is no shame implied in this, for marriage is God’s own gift. It is simply that some seasons are so weighty, so filled with the nearness of God, that even lawful and lovely things are set gently to one side to make room for Him.

There is a quiet wisdom here for any soul that would meet with God. Preparation is not a small thing. Israel did not tumble carelessly into the presence of the Almighty; they spent three days getting ready, washing, setting apart, laying aside every distraction, waiting in expectation. We are so quick, in our day, to rush into God’s presence with unwashed hearts and hurried minds. This chapter would teach us to slow down and prepare, to come to the holy God with reverence and readiness, expecting that when He says He will come down, He truly will.

Exodus 19:16-17 (BSB)

¹⁶ On the third day, when morning came, there was thunder and lightning. A thick cloud was upon the mountain, and a very loud blast of the ram’s horn went out, so that all the people in the camp trembled. ¹⁷ Then Moses brought the people out of the camp to meet with God, and they stood at the foot of the mountain.

And now the third day dawns, and heaven itself seems to break open over Sinai. There is thunder rolling and lightning tearing the sky, a thick cloud crowning the mountain, and rising above it all a trumpet blast so loud and so long that it is not the sound of any human horn, and at the sound of it the whole camp trembles. Read that slowly and let it work on you. These are the same people who three months ago walked out of Egypt in triumph, who sang on the far shore of the sea. Now they stand shaking before the sheer holiness of the God who saved them, for it is one thing to rejoice in what God has done for us, and another thing altogether to stand in the naked presence of who He is.

Yet see what Moses does in the midst of all that terror: he brings the people out of the camp to meet with God, and they stand at the foot of the mountain. He does not leave them cowering in their tents. God had summoned them, and so, trembling as they are, they come out and take their place at the foot of the fire. There is a kind of fear that drives us away from God, and there is a holy fear that draws us, trembling, to stand before Him because He has called us. Israel’s fear is of the second kind. They are afraid, and rightly so, and still they come, because the God who thunders on the mountain is the same God who carried them there on eagles’ wings.

Exodus 19:18-19 (BSB)

¹⁸ Mount Sinai was completely enveloped in smoke, because the LORD had descended on it in fire. And the smoke rose like the smoke of a furnace, and the whole mountain quaked violently. ¹⁹ And as the sound of the ram’s horn grew louder and louder, Moses spoke and God answered him in the thunder.

Here the Bible gives us the great and terrible sight itself, and it spares us nothing. Mount Sinai was completely enveloped in smoke, it says, because the LORD had descended upon it in fire. The mountain that had stood silent and cold for ages was now a mountain aflame, the whole of it wrapped in smoke that billowed up like the smoke of a great furnace, and the very rock beneath quaked and shuddered as the holy God came down upon it. The same fire that had once burned in a single bush without consuming it now clothes an entire mountain, and creation itself trembles under the weight of its Maker drawing near. This is who God is when the veils are pulled back, and it should teach us never to think our God small or safe or tame.

And in the midst of that furnace, a wonder: Moses spoke, and God answered him in the thunder. Think of it. A man stands in the roar of that fire and that trumpet, and he speaks, and the voice of God comes back to him out of the storm. The God who is so holy that the mountain cannot bear His presence is yet a God who converses with His servant, who answers when He is spoken to, who has come down not to destroy His people but to speak with them and give them His words. The fire is real, and so is the conversation. Our God is both, always both, holy beyond approach and yet near enough to answer those who call on Him.

Exodus 19:20-22 (BSB)

²⁰ The LORD descended to the top of Mount Sinai and called Moses to the summit. So Moses went up, ²¹ and the LORD said to him, “Go down and warn the people not to break through to see the LORD, lest many of them perish. ²² Even the priests who approach the LORD must consecrate themselves, or the LORD will break out against them.”

The LORD comes down to the very top of the mountain and calls Moses up to the summit, into the fire and the cloud, and Moses goes. But almost the first word God speaks to him there is a word of warning to carry back down. Go and warn the people, He says, not to break through to see the LORD, lest many of them perish. Even now, with the mountain ablaze before their eyes, there is a danger in the human heart that it will presume, that curiosity or pride will push a man to cross the line God has drawn and force his way where he was told not to go. And God, in mercy, will not have it. The warning is not the language of a God who wants to keep His people away. It is the language of a God who wants to keep His people alive.

And notice that even the priests, the ones who by their office draw nearest to God, must consecrate themselves or the LORD will break out against them. No standing, no office, no nearness of role exempts a man from the holiness of God. The closer one comes, the more that holiness must be reverenced, not less. This is a solemn truth we would do well to carry into our own worship. It is a great grace that we may draw near to God, but the God we draw near to has not changed. He is the same God who came down on Sinai in fire, and He is to be approached, even in all the freedom the gospel gives us, with a reverence that never forgets before Whom we stand.

Exodus 19:23-25 (BSB)

²³ But Moses said to the LORD, “The people cannot come up Mount Sinai, for You solemnly warned us, ‘Put a boundary around the mountain and set it apart as holy.’” ²⁴ And the LORD replied, “Go down and bring Aaron with you. But the priests and the people must not break through to come up to the LORD, or He will break out against them.” ²⁵ So Moses went down to the people and spoke to them.

Moses answers God almost as one reasoning with Him, that surely the people will not break through, for God Himself had already commanded a boundary to be set and the mountain to be made holy. But God repeats the warning still again, and there is instruction in the repeating. Go down, He says, and bring Aaron with you, but the priests and the people must not break through, or the LORD will break out against them. When God says a thing twice and three times, He is not forgetful; He is in earnest. He wants this lesson pressed deep into His people, that His holiness is not a thing to be trifled with, that the line He has drawn is drawn in love and must not be crossed.

And the chapter closes with a single quiet line: so Moses went down to the people and spoke to them. After all the fire and thunder, after the summit and the cloud, the faithful mediator simply comes back down to stand between the holy God above and the trembling people below, carrying God’s words to them. And that, in the end, is the shape of the whole scene, and of our whole hope. A holy God who cannot be approached, a people who dare not come near, and a mediator who goes up and comes down and stands in the gap between them. Israel had Moses. We have One greater than Moses, who came down from a mountain far higher, who did not merely carry God’s words to us but is Himself the Word, and who by His own blood brings us near to the very holiness that once made a mountain shake.