Acts 7 explicitly quotes and retells this prophecy in Stephen’s speech. Stephen reaches back to Genesis 15 to explain Israel’s history: foreign residence, enslavement, affliction, divine judgment, and eventual worship after deliverance. Here the New Testament is not merely finding a theme; it directly recognizes Genesis 15 as prophecy fulfilled in Israel’s story.

The chronology requires careful handling. Genesis speaks of four hundred years, while Exodus 12 speaks of four hundred thirty years. These figures have generated several chronology proposals and textual discussions. The difference should be presented openly rather than forced into a simplistic harmonization, while recognizing that both passages belong to the same promised sojourn-and-deliverance sequence.

The integrated story is: Abraham promised a seed → that seed will become a people → the people will go into a foreign land → suffer bondage → God will judge the oppressor → the people will come out → return toward the promised land. The Exodus is therefore already embedded inside Genesis before Isaac is born.