Genesis 17:7-9

Authorized (King James) Version

⁷ And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee. ⁸ And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.

⁹ And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.