INTRODUCTION
This is one of the strangest passages in all of Scripture. God has just called Moses to deliver Israel from Egypt. He has given him signs and wonders. Moses is on his way. And then: "the LORD met him and sought to put him to death."
Wait — what? God calls Moses and then tries to kill him? No commentary agrees on what is happening here. But embedded in this strange story is one of the Bible's earliest pictures of the gospel.
SETTING THE SCENE: EXODUS 4:21-26 (Exodus 4:21-26)
• vv. 21-23: God tells Moses what He will say to Pharaoh: "Israel is my firstborn son... Let my son go." The contrast is already being set up between God's firstborn son (Israel) and Pharaoh's firstborn.
• v. 24: "The LORD met him at a lodging place and sought to put him to death." — The subject of the verbs is ambiguous. Was it Moses being threatened, or his uncircumcised son?
• vv. 25-26: Zipporah acts immediately — she circumcises her son and uses the word that has puzzled scholars for millennia:
חֲתַן דָּמִים (ḥătan dāmîm) — "Bridegroom of blood." Zipporah touches the foreskin to someone's feet (another ambiguity) and says this phrase. The threat immediately ceases.
WHAT IS A "BRIDEGROOM OF BLOOD"? (Exodus 4:24-26)
The Hebrew word חָתָן (ḥātān) can mean both "son-in-law" and "bridegroom." Some scholars argue Zipporah is recalling her marriage to Moses — the covenant that began with blood. Others suggest she is describing God Himself as entering into a "blood covenant" with Israel through circumcision.
• The key insight from the exegesis paper: The circumcision is not random. Immediately before this scene, God declared Israel to be His "firstborn son" (v. 22). Circumcision was the covenant sign of sonship — it was the mark of belonging to God.
בְּרִית (bᵉrît) — "Covenant." Circumcision in Genesis 17 is explicitly called "the covenant in your flesh." It was the physical mark that said: I belong to this God, and this God belongs to me.
• Moses' son was uncircumcised — meaning he was, in some sense, outside the covenant. And Moses, the deliverer of God's people, was heading into the most significant mission of his life with this covenant gap in his household.
THE GOSPEL HIDDEN IN THIS DARKNESS (Genesis 17:1-14; John 1:29)
Why does God seek to kill Moses (or his son) here? Because covenant faithfulness matters. Because you cannot deliver others into a covenant you yourself are not living in. Because the God who is about to demand the death of Pharaoh's firstborn will not overlook covenant unfaithfulness in His own messenger.
But then Zipporah acts. She sees what needs to happen. She takes the flint, circumcises her son, and the threat is averted. Blood is shed. And the one who was under threat of death is spared.
• This is not just an ancient ritual story. This is the logic of the atonement in miniature.
• The required covenant sign involves blood. The blood is shed. The condemned one is spared. "Bridegroom of blood" — someone preserved by the shedding of blood in covenant.
ὁ ἀμνὸς τοῦ θεοῦ (ho amnos tou theou) — "The Lamb of God" (John 1:29). Jesus, the ultimate covenant sacrifice, sheds blood so that those under covenant threat can be spared. The logic of Exodus 4 runs straight to the cross.
APPLICATION: COVENANT FAITHFULNESS IN THE MESSENGER (Exodus 4:24-26)
Moses could not deliver Israel while his own household was outside the covenant. There is a profound challenge here for anyone who teaches, preaches, or leads: your message must be lived in your home before it is proclaimed to the world.
• Zipporah does the right thing, immediately, at personal cost — even though she may not have fully understood why
• Sometimes faithfulness requires acting decisively on what you know to be true, even in the dark
• The "bridegroom of blood" — the one preserved by covenant blood — is all of us. We are spared not because of our own faithfulness but because blood was shed on our behalf.
CONCLUSION
חֲתַן דָּמִים. Bridegroom of blood. The phrase is strange, the scene is dark, and the scholarship is divided. But the gospel is here: there is a God who is serious about covenant, who is serious about the blood that ratifies it, and who will go to extraordinary lengths — including the blood of His own Son — to keep His people in relationship with Himself.