Good word from Tremper Longman III on the Exodus event and the similarity between God’s salvation in the Old Testament and God’s salvation in the New Testament.
The exodus was the most important salvation event of the Old Testament. God rescued his people from Egyptian bondage by miraculous and extraordinary means. The crossing of the Sea is the climactic moment of their rescue [see Exodus 14]. They had no human means to escape Egypt, but God himself provided the way out. We should not be surprised that the significance of such an important event reverberates through the rest of the Old Testament and into the New Testament (Tremper Longman III, How to Read Exodus [Downers Grove, Ill: IVP Academic, 2009], 145).