TSK · Genesis 15:13

I will give the whole land of Canaan– the land where you are now residing– to you and your descendants after you as a permanent possession. I will be their God.”

So they put foremen over the Israelites to oppress them with hard labor. As a result they built Pithom and Rameses as store cities for Pharaoh.

Opposition to the Plan of God Afterward Moses and Aaron went to Pharaoh and said,“This is what the LORD, the God of Israel, has said,‘Release my people so that they may hold a pilgrim feast to me in the wilderness.’”

“You must not wrong a resident foreigner nor oppress him, for you were foreigners in the land of Egypt.

The resident foreigner who lives with you must be to you like a native citizen among you; so you must love him as yourself, because you were foreigners in the land of Egypt. I am the LORD your God.

So you must love the resident foreigner because you were foreigners in the land of Egypt.

Israel moved to Egypt; Jacob lived for a time in the land of Ham.

But God spoke as follows:‘Your descendants will be foreigners in a foreign country, whose citizens will enslave them and mistreat them for four hundred years.

What I am saying is this: The law that came four hundred thirty years later does not cancel a covenant previously ratified by God, so as to invalidate the promise.