Acts 7:10-13

10and rescued him out of all his afflictions and gave him favor and wisdom before Pharaoh, king of Egypt, who made him ruler over Egypt and over all his household.

11Now there came a famine throughout all Egypt and Canaan, and great affliction, and our fathers could find no food.

12But when Jacob heard that there was grain in Egypt, he sent out our fathers on their first visit.

13And on the second visit Joseph made himself known to his brothers, and Joseph's family became known to Pharaoh.