Galatians 3:17
I mean to say that the testament which God has already ratified could not be annulled by the Law which came four hundred and thirty years later, so as to make the Promise void.
Acts 7:6-7
"What God said was this. "'His offspring will sojourn in a foreign land where they will be enslaved and oppressed for four hundred years.
Acts 7:17
"but as the time drew near for the fulfilment of the promise which God made to Abraham, the people multiplied and increased in Egypt;
Hebrews 11:8-13
By faith Abraham obeyed when he was called to go out unto a place which he was to receive for an inheritance; and he went out, not knowing whither he went.