Gen 47:31

47:31 Swear to me. Jacob asked that Joseph confirm his promise (v. 30) with a solemn oath. Likewise, God underscores the surety of His gracious covenant promise with an oath (15:8–21; 22:17; Heb. 6:13, 14 note). For Joseph’s fulfillment of his oath see 50:1–14.

bowed himself. An expression of reverent thanksgiving to God that his last wish would be fulfilled (cf. 1 Kin. 1:47, 48).