In Exodus 2:23, the death of the king and Israel's groaning mark the end of the long period—the chronological context for Moses being 80 years old when he speaks to Pharaoh.

In Genesis 41:46, Joseph's age (30) at entering Pharaoh's service parallels Moses' age (80) at confronting Pharaoh—both key ages for God's servants in Egypt.

In Deuteronomy 31:2, Moses says he is 120 years old—showing the forty-year span from his age 80 in Exodus 7:7 to the end of his leadership.

In Deuteronomy 34:7, Moses is 120 at death—directly completing the chronological record from his age 80 at the beginning of his mission.

In Acts 7:23, Moses is 40 years old when he visits his people—earlier milestone in his life, contrasting with the age 80 of his call.

In Acts 7:30, forty years later the angel appears to Moses in the bush—directly bridging from his 40-year exile to his 80-year-old call.