Acts 7:6

And God spake thus; that his seed would be a sojourner in a foreign land; and they would bring it into servitude, and ill-use it four hundred years.

Galatians 3:17

But this I say: A covenant previously confirmed by God, the law, which came into existence four hundred and thirty years later, does not invalidate, that it should make the promise of no effect.

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.

Bible References

Four

Galatians 3:17
But this I say: A covenant previously confirmed by God, the law, which came into existence four hundred and thirty years later, does not invalidate, that it should make the promise of no effect.