(10) That thou mayest know.--Comp. Exodus 7:5; Exodus 7:17. Moses is not content that Pharaoh should simply acknowledge Jehovah as he had done (Exodus 8:8), but wishes him to be convinced that no other god can compare with Him.

Verse 10. - To-morrow. See the comment on ver. 9. That thou mayest know. Moses accepts the date fixed by the Pharaoh, and makes an appeal to him to recognise the unapproachable power and glory of Jehovah, if the event corresponds with the time agreed upon.

8:1-15 Pharaoh is plagued with frogs; their vast numbers made them sore plagues to the Egyptians. God could have plagued Egypt with lions, or bears, or wolves, or with birds of prey, but he chose to do it by these despicable creatures. God, when he pleases, can arm the smallest parts of the creation against us. He thereby humbled Pharaoh. They should neither eat, nor drink, nor sleep in quiet; but wherever they were, they should be troubled by the frogs. God's curse upon a man will pursue him wherever he goes, and lie heavy upon him whatever he does. Pharaoh gave way under this plague. He promises that he will let the people go. Those who bid defiance to God and prayer, first or last, will be made to see their need of both. But when Pharaoh saw there was respite, he hardened his heart. Till the heart is renewed by the grace of God, the thoughts made by affliction do not abide; the convictions wear off, and the promises that were given are forgotten. Till the state of the air is changed, what thaws in the sun will freeze again in the shade.And he said, tomorrow,.... Which according to Bishop Usher was the twenty sixth day of Adar, or February. It may seem strange that Pharaoh, and his people, being so greatly distressed with this plague, should not desire that the Lord would be entreated to do it immediately, and not put it off to another day: two reasons are usually given; one is, he might hope that it would by that time go off of itself, and then he should not be beholden to the Lord, nor to Moses; and the other is, that he thought an affair of this kind could not be done immediately, but that it required time for making the intercession, and performing rites and ceremonies, which he supposed might be used, as were by his magicians; and it might be now the evening of the day, and therefore deferred it till tomorrow:

and he said, be it according to thy word, as if he had said, it shall be done as thou hast desired, and at the time fixed:

that thou mayest know that there is none like unto the Lord our God; that can send plagues, and remove them at his pleasure, which the deities he worshipped, and the magicians he employed, could not do.