See now that I, [even] I, [am] he,.... Which words are directed to the people of God in their low estate, to look to Christ, and expect deliverance and salvation from him; or to their enemies that insult them, to the despisers, to look, and wonder, and perish, as they will, when the witnesses slain by them shall arise, and go up to heaven in their sight, Re 11:11; they are spoken by the Word and Son of God, to whom the Father has committed all judgment, and who will now rise up and execute it; so the Targum of Jonathan,"when the Word of the Lord shall reveal himself to redeem his people, he will say to all people, see now, &c.'
'and who will declare himself to be the great Jehovah, the self-existent Being, the eternal and immutable I AM; for this phrase is expressive of his existence, eternity, immutability, and sovereignty; and which the above Targum paraphrases thus,"see now that I am he that have been, and am, and I am he that shall be,''which, as it is a deciphering the word "Jehovah", is what is applied to Christ, Re 1:8.
The repeating the word "I", as it may denote the strong affection of the speaker, and the certainty of what he would do, so it may have respect to both sorts of persons the words are directed to, and to the several sorts of things to be done, hereafter related; signifying that it is the same I, that does the one, does also the other, kills and makes alive, &c.