That nation whom they shall serve, even the Egyptians, will I judge This points at the plagues of Egypt, by which God not only constrained the Egyptians to release Israel, but punished them for all the hardships they had put upon them. The punishing of persecutors is the judging of them; it is a righteous thing with God, and a particular act of justice, to “recompense tribulation to those that trouble” his people.
Related Commentaries of Genesis 15:14
Genesis 15:14
14 And also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance.