Acts 7:6

But God, spake thus - His seed shall be a sojourner in a foreign land, and they will bring it into bondage, and ill-treat it four-hundred years;

Genesis 15:13

And he said to Abram - Thou must surely know, that, sojourners, will thy seed become in a land not theirs, and shall serve them and they will humble them, four hundred years;

Genesis 15:16

And, in the fourth generation, shall they return hither, - for not complete, is the iniquity of the Amorites, as yet,

Exodus 12:40-41

Now, the time during which the sons of Israel dwelt in Egypt, was four hundred and thirty years.

Galatians 3:17

And, this, I say - a covenant previously confirmed by God, the law which, after four hundred and thirty years, hath been brought into being, doth not annul, so as to do away with the promise.

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

That

Genesis 15:13
And he said to Abram - Thou must surely know, that, sojourners, will thy seed become in a land not theirs, and shall serve them and they will humble them, four hundred years;

Four

Exodus 12:40
Now, the time during which the sons of Israel dwelt in Egypt, was four hundred and thirty years.
Galatians 3:17
And, this, I say - a covenant previously confirmed by God, the law which, after four hundred and thirty years, hath been brought into being, doth not annul, so as to do away with the promise.