Galatians 3:17
My point is this--An agreement already confirmed by God cannot be canceled by the Law, which came four hundred and thirty years later, so as to cause the promise to be set aside.
Acts 7:6-7
God's words were these--'Abraham's descendants shall live in a foreign country, where they will be enslaved and ill-treated for four hundred years.
Acts 7:17
As the time drew near for the fulfillment of the promise which God had made to Abraham, the people increased largely in numbers in Egypt,
Hebrews 11:8-13
It was faith that enabled Abraham to obey the Call that he received, and to set out for the place which he was afterwards to obtain as his own; and he set out not knowing where he was going.