Exodus 3-4: The Call of Moses
Spoken Gospel podcast with a photo of David and Seth

Exodus 3-4: The Call of Moses

About This Episode

What does God's name "I Am" mean? What does it reveal to us about Jesus? How are we to understand Moses' objections to God's calling? Why did Moses' feet have to be dabbed with his son's foreskin? See how all these questions and more are answered in Jesus in this episode of The Spoken Gospel Podcast.

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The God Who Keeps His Promises: Exploring Exodus 3–4

Show Notes

David Bowden and Seth Stewart continue their walk through the book of Exodus, turning their attention to chapters 3 and 4—the call of Moses at the burning bush. This episode unpacks the revelation of God's name, the pattern of firstborn sons, and how the entire narrative bends toward the Gospel of Jesus.

A Burning Bush and a Covenant-Keeping God

The story opens with Moses tending sheep in the wilderness near Horeb, the mountain of God. He encounters something extraordinary: a bush engulfed in flame but never consumed. An angel of Yahweh appears within the fire, and God speaks. The first thing God does is identify himself—not with abstract philosophical categories, but through covenant relationship. He says, "I am the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob" (Exodus 3:6). This identification is not a throwaway line. It recurs throughout the passage—in verses 6, 15, 16, and again in 4:5. God is relentlessly reminding Moses, and the reader, that he is the same God who made promises to Israel's ancestors and has never broken one.

Alongside this covenant identity, God declares that he has seen the affliction of his people in Egypt. The language of seeing their suffering appears repeatedly in chapter 3 (verses 7, 9, and 16), establishing that this is a God who responds to the cries of the oppressed. He promises to bring them out of Egypt and into a land flowing with milk and honey—the land promised to Abraham. But that land is inhabited by the Canaanites, the Hittites, the Amorites, and others. Remarkably, God says these nations will listen to Israel's voice (Exodus 3:18), even though Egypt never did. Pharaoh, by contrast, will refuse to let Israel go unless compelled by God's mighty hand. The contrast is striking: those who have no power will be heard by the powerful, and the most powerful ruler on earth will be overpowered by God himself.

The Meaning of God's Name

One of the most significant moments in all of Scripture occurs in this passage: the revelation of God's personal name. The name Yahweh appears over a hundred times in Genesis, but its meaning had not yet been unpacked in the flow of the biblical narrative. As Exodus 6:3 later confirms, God had appeared to Abraham, Isaac, and Jacob as God Almighty (El Shaddai), but had not made himself fully known by this name. Something new is happening at the burning bush.

When Moses protests, asking, "Who am I that I should go to Pharaoh?" (Exodus 3:11), God does not answer that question directly. He does not build up Moses's résumé. Instead, he responds with his own identity: "I will be with you" (Exodus 3:12). The Hebrew word here is ehyeh, a term that carries both present and future meaning—"I am" and "I will be." It is not a static philosophical statement about eternal existence, though that is true. In context, it is a covenant promise: the God who was with Abraham, Isaac, and Jacob will now be with Moses. When Moses presses further, asking what name he should give to the Israelites, God responds, "Ehyeh asher ehyeh"—"I am who I am" or "I will be who I will be" (Exodus 3:14). He then shifts from the first person (ehyeh, "I will be with you") to the third person: Yahweh, meaning "He will be with you." This shift is intentional. When Moses speaks to Israel, he is not saying "I will be with you"—that would be inappropriate. He is announcing that Yahweh, the covenant God of their fathers, is with them and will be with them. God's name, then, is not primarily about self-existence in the abstract. It is about covenant faithfulness. His name is the repeated story of promising and then fulfilling, of choosing flawed people and remaining faithful to them despite their failures.

Moses' Objections and the Signs God Provides

Moses brings a series of protests before God: Who am I to do this? Who shall I say sent me? What if they don't believe me? I'm not eloquent. Each objection reveals Moses's deep insecurity—a man who tried to exercise authority among both Egyptians and Hebrews and was rejected by both. He murdered an Egyptian, was accused by his own kinsmen ("Who made you a judge over us?"), and fled into the wilderness. His question "Who am I?" is not just rhetorical humility; it is the accumulated weight of a lifetime of failure and rejection.

God's response to every objection is essentially the same: it is not about Moses. "I will be with you." "I will be with your mouth." "Who has made man's mouth? Is it not I, Yahweh?" (Exodus 4:11). God does not flatter Moses or give him a motivational speech. He redirects the entire conversation away from Moses's qualifications and toward his own character and power. To address the concern that the elders of Israel won't believe, God gives Moses three signs: a staff that becomes a serpent, a hand that turns leprous and is restored, and water from the Nile that turns to blood on dry ground. These signs are specifically for the elders of Israel. But they also preview, in miniature, the plagues that God will later unleash on Egypt in amplified form. The staff-serpent becomes a serpent that devours the serpents of Pharaoh's magicians. The leprous hand foreshadows the boils that will cover the Egyptians. The water-to-blood becomes the entire Nile turning to blood. What begins as a sign for Israel becomes a judgment on Egypt.

The Strange Account of Gershom and the Pattern of Firstborn Sons

One of the most bewildering passages in all of Exodus comes in 4:24–26. Moses is on his way to Egypt with his wife Zipporah and his firstborn son Gershom. They stop at a lodging place, and God comes and seeks to kill Gershom. Zipporah acts swiftly—she circumcises her son and touches Moses's feet with the foreskin, declaring, "You are a bridegroom of blood to me." The passage is jarring, but it makes sense in its immediate context. God has just told Moses to say to Pharaoh, "Israel is my firstborn son. Let my son go that he may serve me. If you refuse, I will kill your firstborn son" (Exodus 4:22–23). The theme of firstborn sons and their lives being required is front and center. And Moses, God's chosen deliverer, has failed to circumcise his own firstborn in obedience to the covenant God made with Abraham. God's holiness does not make exceptions—not even for his chosen instrument of deliverance.

This episode recalls the binding of Isaac in Genesis 22, where God required Abraham's firstborn son of promise, only to provide a substitute ram. It also anticipates the Passover, where the firstborn of Egypt will die while Israel's firstborn are spared through the blood of a lamb. A pattern is emerging: the lives of firstborn sons are required, but God provides a substitute. Isaac is spared by a ram. Gershom is spared by circumcision and blood. Israel's firstborn will be spared by a sacrificial lamb. Each provision points forward to the question the narrative keeps asking: Who is the firstborn son who can finally fix the broken relationship between God and humanity? Isaac was not the answer. Israel collectively, God's "firstborn son," was not the answer. The search continues—for a substitute whose sacrifice will be sufficient once and for all.

Women as Instruments of God's Provision

A theme running quietly through the Exodus narrative is the role of women as agents of God's saving work. In chapters 1 and 2, it was the Hebrew midwives, Moses's mother, his sister Miriam, and Pharaoh's daughter who preserved Moses's life. Now in chapters 3 and 4, Zipporah steps in to obey the covenant on Moses's behalf, performing the circumcision that saves her son's life. God also instructs that the women of Israel will ask their Egyptian neighbors for silver, gold, and clothing—and through the women, Israel will plunder Egypt (Exodus 3:22). This fulfills God's promise to Abraham in Genesis 15:14 that his descendants would leave their captivity with great possessions. The provision of wealth for God's people comes through the hands of women. This pattern does not end in the Old Testament; the Gospels record that women financially supported Jesus's earthly ministry as well. Throughout Scripture, God consistently uses those whom the surrounding culture would overlook as primary instruments of his faithfulness.

Jesus, the True Covenant Keeper

The entire conversation between God and Moses points beyond itself to Jesus. When Moses asks, "Who am I?" God answers with his own identity: "I will be with you." This promise finds its ultimate fulfillment in the name Emmanuel—God with us. Jesus is the place where God's covenant faithfulness is most perfectly displayed. Where Moses was a disqualified exile and a murderer, Jesus was the sinless Son of God. Where Moses needed to point to someone else's authority, Jesus declared, "Before Abraham was, I am" (John 8:58)—claiming for himself the very name revealed at the burning bush. Where Moses needed external signs to convince the people, Jesus performed miracles by the power of the Holy Spirit dwelling within him because he was God himself. Where Moses was slow of speech, Jesus was the Word of God made flesh, teaching with an authority that silenced the scribes and Pharisees.

The pattern of firstborn sons finds its resolution in Jesus as well. Isaac's life was required but a ram was provided. Gershom's life was required but circumcision and blood provided rescue. Jesus is the firstborn Son whose life was not required of him—he never broke the covenant, never sinned, never offended God's holiness. And yet he willingly gave up his life as the substitute for all the failed firstborn sons before him. As Colossians 2:11 puts it, in him we are circumcised with a circumcision made without hands—not just the cutting of one part of the body, but the giving of his whole body on the cross. God requires holiness, and God provides what he requires. The covenant creator becomes the covenant keeper. Yahweh becomes Emmanuel. The one who said, "I will be with you," came in the flesh to say, "I am with you always, even to the end of the age" (Matthew 28:20). The answer to Moses's question—and ours—is not a pat on the back or a motivational speech. It is the Gospel: where we are weak, Jesus has been strong. Where we have disqualified ourselves, his perfect life and shed blood have qualified us. The call is not to look inward and try harder, but to behold Jesus—because, as 2 Corinthians 3:18 teaches, we become what we behold.

Transcript

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