When giving Abraham strong assurance that the divine promise would be fulfilled upon Abraham’s descendants, God said to him: “You may know for sure that your seed will become an alien resident in a land not theirs, and they will have to serve them, and these will certainly afflict them for four hundred years.

Genesis 15:13-16.

5. The long time that was to pass before Abraham’s seed would occupy the Promised Land allowed for what to take place?

⁵ Thus the taking over of the land by the natural seed of Abraham was put off for more than four hundred years. This long period of time would allow for the chosen natural seed of Abraham to grow to a people of many members, numerous enough to displace the Amorite occupants of Canaanland who were going from bad to worse in the “error” of their pagan ways.