Also take your flocks and your herds. Pharaoh thus retracted the prohibition of Exodus 10:24, and "gave the sacrifices and burnt-offerings" which Moses had required (Exodus 10:25). Bless me also. Pharaoh was probably accustomed to receive blessings from his own priests, and had thus been led to value them.
His desire for a blessing from Moses and Aaron, ere they departed, probably sprang from a conviction—based on the miracles which he had witnessed—that their intercession would avail more with God than that of his own hierarchy.