Deep study
Exodus to Deuteronomy - the burning bush, the exodus, and the man who stood in the gap
Moses is the towering mediator of the Old Testament - and at every turn he points beyond himself to a greater Deliverer.
Moses' life falls into three forty-year movements: forty years a prince in Pharaoh's house, forty years a shepherd in Midian, and forty years a leader in the wilderness. The middle stretch matters. The man who tried to deliver Israel by his own hand (killing an Egyptian) had to be emptied of self-confidence in the obscurity of the desert before God could use him. God often prepares His servants in hidden places.
At the burning bush (Exodus 3) Moses asks who he should say has sent him. God answers, I AM WHO I AM (ehyeh asher ehyeh), and reveals His covenant name, YHWH. The name speaks of One who simply is - self-existent, dependent on nothing, eternally present. Before Moses is given a task, he is given a vision of God. The ground is holy not because of the place but because of the Presence.
Centuries later Jesus would take that exact name on His lips: before Abraham was, I AM (John 8:58). The Jews picked up stones, because they understood He was claiming to be the God of the bush.
The tenth plague falls on every house, but those marked by the blood of a lamb on their doorposts are passed over (Exodus 12). Israel is not spared because they are better, but because they are under the blood. Redemption comes by substitution: a lamb dies so the firstborn may live. Paul says it plainly - Christ, our Passover lamb, has been sacrificed (1 Corinthians 5:7) - and John the Baptist points and says, Behold, the Lamb of God (John 1:29).
After the golden calf, Moses stands between a holy God and a sinful people. He pleads, and even offers himself: blot me out of your book (Exodus 32:32). On the mountain he asks to see God's glory and is shown God's goodness - merciful and gracious, slow to anger (Exodus 34:6). Moses' shining face testifies that to meet with God is to be changed; Paul says we behold that same glory, unveiled, in Christ (2 Corinthians 3:12-18).
Moses promised a prophet like me whom you shall heed (Deuteronomy 18:15). Hebrews says Moses was faithful as a servant in God's house, but Christ as a Son over it (Hebrews 3:5-6). Jesus is the greater Mediator (1 Timothy 2:5), the true Passover Lamb, and the One who accomplishes a greater exodus - which is exactly the word Luke uses (exodos) for His death at the Transfiguration (Luke 9:31).
The story comes full circle at the end. The redeemed in glory stand beside a sea of glass and sing the song of Moses, the servant of God, and the song of the Lamb (Revelation 15:3) - the two great deliverances joined in one anthem. And the plagues that once fell on Egypt echo through Revelation's judgments, while the blood of the Lamb still marks out the people of God as surely as the doorposts once were marked.