The expression in verse 19, 'not by a mighty hand,' is very obscure. It may possibly mean that Pharaoh was so obstinate that no human power was strong enough to bend his will. Therefore, in contrast to the 'mighty hand' of man, which was not mighty enough for this work, God will stretch out His hand, and that will suffice to compel obedience from the proudest. God can force men by His might to comply with His will, so far as external acts go; but He does not regard that as obedience, nor delight in it. We can steel ourselves against men's power, but God's hand can crush and break the strongest will. 'It is a fearful thing to fall into the hands of the living God.' It is a blessed thing to put ourselves into them, in order to be moulded by their loving touch. The alternative is laid before every soul of man. A LAST MERCIFUL WARNING 'And the Lord said unto Moses, Yet will I bring one plague more upon Pharaoh, and upon Egypt; afterwards he will let you go hence: when he shall let you go, he shall surely thrust you out hence altogether. 2. Speak now in the ears of the people, and let every man borrow of his neighbour, and every woman of her neighbour, jewels of silver, and jewels of gold. 3. And the Lord gave the people favour in the sight of the Egyptians. Moreover, the man Moses was very great in the land of Egypt, in the sight of Pharaoh's servants, and in the sight of the people. 4. And Moses said, Thus saith the Lord, About midnight will I go out into the midst of Egypt; 5. And all the first-born in the land of Egypt shall die, from the first-born of Pharaoh that sitteth upon his throne, even unto the first-born of the maid-servant that is behind the mill; and all the first-born of beasts. 6. And there shall be a great cry throughout all the land of Egypt, such as there was none like it, nor shall be like it any more. 7. But against any of the children of Israel shall not a dog move his tongue, against man or beast: that ye may know how that the Lord doth put a difference between the Egyptians and Israel. 8. And all these thy servants shall come down unto Me, and bow themselves unto Me, saying, Get Thee out, and all the people that follow Thee: and after that I will go out. And he went out from Pharaoh in a great anger. 9. And the Lord said unto Moses, Pharaoh shall not hearken unto you; that My wonders may be multiplied in the land of Egypt. 10. And Moses and Aaron did all these wonders before Pharaoh: and the Lord hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.'--EXODUS xi. 1-10.