Genesis 15:13; Genesis 15:16; Genesis 15:18

13 And he said to Abram, Know assuredly that thy seed will be a sojourner in a land [that is] not theirs, and they shall serve them; and they shall afflict them four hundred years.

16 And [in the] fourth generation they shall come hither again; for the iniquity of the Amorites is not yet full.

18 On the same day Jehovah made a covenant with Abram, saying, Unto thy seed I give this land, from the river of Egypt to the great river, the river Euphrates;