Genesis 15:9-13

9So God said to him, “Bring Me a three-year-old heifer, a three-year-old female goat, a three-year-old ram, a turtledove, and a young pigeon.”

10So Abram brought all these to Him and cut them down the middle, and laid each half opposite the other; but he did not cut the birds.

11The birds of prey swooped down on the carcasses, but Abram drove them away.

12When the sun was setting, a deep sleep overcame Abram; and a horror (terror, shuddering fear, nightmare) of great darkness overcame him.

13God said to Abram, “Know for sure that your descendants will be strangers [living temporarily] in a land (Egypt) that is not theirs, where they will be enslaved and oppressed for four hundred years.