Four hundred years. — The exact duration of the sojourn in Egypt was 430 years (Exodus 12:40-41), and with this agrees the genealogy of Jehoshua (1 Chronicles 7:23-27).
Related Commentaries of Genesis 15:13
Genesis 15:13
13 And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years;