Genesis 15:13

15:13 Then the Lord said to Abram, “Know for certain that your descendants will be strangers in a foreign country. They will be enslaved and oppressed for four hundred years.

Exodus 12:40-41

12:40 Now the length of time the Israelites lived in Egypt was 430 years. 12:41 At the end of the 430 years, on the very day, all the regiments of the Lord went out of the land of Egypt.

Acts 7:6

7:6 But God spoke as follows: ‘Your descendants will be foreigners in a foreign country, whose citizens will enslave them and mistreat them for four hundred years.