Galatians 3:17
this therefore I say, that the law, which was not till four hundred and thirty years after, cannot disannul the promise, that was ratified before by God, so as to set the promise afoot.
Acts 7:6-7
God declar'd likewise, "that his posterity should sojourn in a strange land, where they should be enslaved and abused four hundred years.
Acts 7:17
now while the time was approaching to accomplish what God had sworn to Abraham, the people grew numerous in Egypt,
Hebrews 11:8-13
'Twas by faith that he who was named Abraham, showed his obedience in travelling to a foreign country, which he was afterwards to inherit; and began his journey without knowing where he was going.