Acts 7:6
And God had spoken about this [beforehand] by saying that Abraham's descendants would live in a foreign country and that they would [eventually] be ill-treated as slaves for four hundred years.
Galatians 3:17
Here is what I am saying: The Agreement originally made by God [with Abraham], with its attending promises, was not canceled when the law of Moses was given some four hundred and thirty years later.
Treasury of Scripture Knowledge
Summary
And God spake on this wise, That his seed should sojourn in a strange land; and that they should bring them into bondage, and entreat them evil four hundred years.
Four
Bible References
Four
Galatians 3:17
Here is what I am saying: The Agreement originally made by God [with Abraham], with its attending promises, was not canceled when the law of Moses was given some four hundred and thirty years later.