Exodus 3:19-22

19And I know that the king of Egypt will not give you leave to go, no, not by a mighty hand. 20And I will put forth my hand, and smite Egypt with all my wonders which I will do in the midst thereof: and after that he will let you go. 21And I will give this people favour in the sight of the Egyptians: and it shall come to pass, that, when ye go, ye shall not go empty: 22but every woman shall ask of her neighbour, and of her that sojourneth in her house, jewels of silver, and jewels of gold, and raiment: and ye shall put them upon your sons, and upon your daughters; and ye shall spoil the Egyptians.