Hebrews 11:21

both the sons--Greek, "each of the sons" (Gen 47:29; Gen 48:8-20). He knew not Joseph's sons, and could not distinguish them by sight, yet he did distinguish them by faith, transposing his hands intentionally, so as to lay his right hand on the younger, Ephraim, whose posterity was to be greater than that of Manasseh: he also adopted these grandchildren as his own sons, after having transferred the right of primogeniture to Joseph (Gen 48:22). and worshipped--This did not take place in immediate connection with the foregoing, but before it, when Jacob made Joseph swear that he would bury him with his fathers in Canaan, not in Egypt. The assurance that Joseph would do so filled him with pious gratitude to God, which he expressed by raising himself on his bed to an attitude of worship. His faith, as Joseph's (Heb 11:22), consisted in his so confidentially anticipating the fulfilment of God's promise of Canaan to his descendants, as to desire to be buried there as his proper possession. leaning upon the top of his staff-- Gen 47:31, Hebrew and English Version, "upon the bed's head." The Septuagint translates as Paul here.

— Jamieson-Fausset-Brown Commentary (public domain)