Genesis 28:1-3

And Isaac called Jacob, and blessed him, and charged him, and said unto him, Thou shalt not take a wife of the daughters of Canaan. Arise, go to Padan-aram, to the house of Bethuel thy mother's father; and take thee a wife from thence of the daughters of Laban thy mother's brother. And God Almighty bless thee, and make thee fruitful, and multiply thee, that thou mayest be a multitude of people