Then Yahweh said to Abram, “Know for certain that your descendants will be strangers in a land that is not their own. They will be enslaved and oppressed there for four hundred years.
In context
11Birds of prey swooped down on the carcasses, and Abram drove them off. 12As the sun was going down, a deep sleep fell over Abram, and a great, dark dread came over him. 13Then Yahweh said to Abram, “Know for certain that your descendants will be strangers in a land that is not their own. They will be enslaved and oppressed there for four hundred years. 14But I will judge the nation they serve, and afterward your descendants will come out with great wealth. 15As for you, you will go to your ancestors in peace; you will be buried at a good old age.