Exodus 3:20 And I will stretch out 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. 21 And I will give this people favor in the sight of the Egyptians: and it shall come to pass, that, when ye go, ye shall not go empty.
[Patriarchs & Prophets pp 253>254] Direction was also given concerning the provision they were to make for the journey. The Lord declared, “It shall come to pass, that, when ye go, ye shall not go empty: but every woman shall borrow of her neighbor, and of her that sojourneth in her house, jewels of silver, and jewels of gold, and raiment.” The Egyptians had been enriched by the labor unjustly exacted from the Israelites, and as the latter were to start on the journey to their new home, it was right for them to claim the reward of their years of toil. They were to ask for articles of value, such as could be easily transported, and God would give them favor in the sight of the Egyptians.
The mighty miracles wrought for their deliverance would strike terror to the oppressors, so that the requests of the bondmen would be granted. Moses saw before him difficulties that seemed insurmountable. What proof could he give his people that God had indeed sent him? “Behold,” he said, “they will not believe me, nor hearken unto my voice: for they will say, The Lord hath not appeared unto thee.” Evidence that appealed to his own senses was now given. He was told to cast his rod upon the ground. As he did so, “it became a serpent; and Moses fled from before it.” He was commanded to seize it, and in his hand it became a rod.
He was bidden to put his hand into his bosom. He obeyed, and “when he took it out, behold, his hand was leprous as snow.” Being told to put it again into his bosom, he found on withdrawing it that it had become like the other. By these signs the Lord assured Moses that His own people, as well as Pharaoh, should be convinced that One mightier than the king of Egypt was manifest among them.
Exodus 3:6 And the Lord said furthermore unto him, Put now thine hand into thy bosom. And he put his hand into his bosom: and when he took it out, behold, his hand was leprous as snow. 7 And he said, Put thine hand into thy bosom again. And he put his hand into his bosom again; and plucked it out of his bosom, and, behold, it was turned again as his other flesh. 8 And it shall come to pass, if they will not believe thee, neither hearken to the voice of the first sign, that they will believe the voice of the latter sign.
May God add His blessing to the study of His word. "Good night" and God bless!