And the LORD spake unto Moses and unto Aaron, and gave them a charge unto the children of Israel, and unto Pharaoh king of Egypt, to bring the children of Israel out of the land of Egypt.

And the Lord spoke to Moses and Aaron, and he gave them a charge unto the children of Israel, and unto Pharao the king of Egypt, that they should bring forth the children of Israel out of the land of Egypt.

And Jehovah spoke to Moses and to Aaron, and gave them a commandment to the children of Israel, and to Pharaoh king of Egypt, to bring the children of Israel out of the land of Egypt.

And Jehovah speaketh unto Moses, and unto Aaron, and chargeth them for the sons of Israel, and for Pharaoh king of Egypt, to bring out the sons of Israel from the land of Egypt.

And the word of the Lord came to Moses and Aaron, with orders for the children of Israel and for Pharaoh, king of Egypt, to take the children of Israel out of the land of Egypt.

And the Lord spoke to Moses and Aaron, and he gave them a commandment for the sons of Israel, and for Pharaoh, the king of Egypt, that they should lead the sons of Israel away from the land of Egypt.

Loquutus autem fuerat Jehova ad Mosen, et Aharon, dederatque eis mandata ad filios Israel et ad Pharaonem regem Aegypti, ut emitteret filios Israel e terra Aegypti.

And the Lord spake unto Moses. I translate it, "the Lord had spoken unto Moses;" because reference is here made to the commencement of his calling, and, therefore, the sense will be more accurately rendered by the perfect past tense; for he repeats, what he had already said, that he and Aaron his brother had not acted rashly, but had been commissioned by the command of God. The drift is, that however often the work might have been in some way interrupted, the counsel of God still held firm for the liberation of the people. But it is evident that he speaks of the first command, because he says that he and his brother were sent as well to the children of Israel as to Pharaoh.

Unto Moses and unto Aaron - The final and formal charge to the two brothers is given, as might be expected, before the plagues are denounced. With this verse begins a new section of the history.

And the Lord spake unto Moses and unto Aaron,.... No notice is taken of the objection of Moses, having been sufficiently answered before, and Aaron is joined with him in the following charge:
and gave them a charge unto the children of Israel, and unto Pharaoh king of Egypt; that is, to go to the children of Israel and comfort them, and direct them what they should do, and how they should behave under their present circumstances; assuring them of deliverance, and to go to Pharaoh, and to make a fresh demand upon him to let Israel go; and in this work they had a solemn charge from God to continue, and not to desist from it, until they had finished it:
to bring the children of Israel out of the land of Egypt; which they were to be the instruments of: and that it might be known clearly from whom they descended, who had such a charge given them, and such honour put upon them, the following genealogy is recorded.

Exodus 6:13 forms a concluding summary, and prepares the way for the genealogy that follows, the heading of which is given in Exodus 6:14.
(Note: The organic connection of this genealogy with the entire narrative has been so conclusively demonstrated by Ranke, in his Unterss. ub. d. Pent. i. p. 68ff. and ii. 19ff., that even Knobel has admitted it, and thrown away the fragmentary hypothesis.)

The Lord gave them a charge, both to the children of Israel, and to Pharaoh - God's authority is sufficient to answer all objections, and binds us to obedience without murmuring or disputing.