Acts 7:17
"But as the time drew near for the fulfilment of the promise which God had made to Abraham, the people became many times more numerous in Egypt,
Acts 7:6
And God declared that Abraham's posterity should for four hundred years make their home in a country not their own, and be reduced to slavery and be oppressed.
Acts 13:17
The God of this people of Israel chose our forefathers, and made the people great during their stay in Egypt, until with wondrous power He brought them out from that land.
2 Peter 3:8-9
But there is one thing, dear friends, which you must not forget. With the Lord one day resembles a thousand years and a thousand years resemble one day.