And the Lord spoke to Moses, saying: I am the Lord: speak thou to Pharao king of Egypt all that I say to thee.

that Jehovah speaketh unto Moses, saying, 'I am Jehovah, speak unto Pharaoh king of Egypt all that I am speaking unto thee.'

The Lord said to Moses, I am the Lord: say to Pharaoh, king of Egypt, everything I am saying to you.

Quo loquutus est Jehova ad Mosen, dicendo: Ego Jehova: loquere ad Pharaonem regem Aegypti quaecunque ego loquor ad te:

And the Lord spake unto Moses, saying, I am the Lord,.... See Exodus 6:2,
speak thou unto Pharaoh king of Egypt all that I say unto thee; that he let Israel go; and that in case of refusal, that he would punish him and his people with this and the other plague, one after another, and at last slay him and their firstborn.

Speak all that I say unto thee - As a faithful ambassador. Those that go on God's errand must not shun to declare the whole counsel of God.