Genesis 15:11-16 New American Standard Bible (NASB)

11. The birds of prey came down upon the carcasses, and Abram drove them away.

12. Now when the sun was going down, a deep sleep fell upon Abram; and behold, terror and great darkness fell upon him.

13. God said to Abram, "Know for certain that your descendants will be strangers in a land that is not theirs, where they will be enslaved and oppressed four hundred years.

14. But I will also judge the nation whom they will serve, and afterward they will come out with many possessions.

15. As for you, you shall go to your fathers in peace; you will be buried at a good old age.

16. Then in the fourth generation they will return here, for the iniquity of the Amorite is not yet complete."

Genesis 15