Deuteronomy 10:20-22

Thou shalt fear Jehovah thy God; him shalt thou serve; and to him shalt thou cleave, and by his name shalt thou swear. He is thy praise, and he is thy God, that hath done for thee these great and terrible things, which thine eyes have seen. Thy fathers went down into Egypt with threescore and ten persons; and now Jehovah thy God hath made thee as the stars of heaven for multitude.