Therefore my people shall know my name in that day: for I myself that spoke, behold I am here.

Therefore my people shall know my name; therefore they shall know in that day that I am HE, that saith, Here am I.

Therefore doth My people know My name, Therefore, in that day, Surely I am He who is speaking, behold Me.'

For this cause I will make my name clear to my people; in that day they will be certain that it is my word which comes to them; see, here am I.

Therefore My people shall know My name; Therefore they shall know in that day That I, even He that spoke, behold, here I am.

Therefore my people shall know my name; in that day they will know that I am he who speaks; look, it is I.'

Because of this, my people will know my name, in that day. For it is I myself who is speaking. Behold, I am here.

Propterea sciet populus meus nomen meum; propterea in die illa, quod ego idem qui loquor; ecee, adero.

Therefore shall my people know. In this verse he concludes what he had glanced at in the two preceding verses, that at length the people must be redeemed by God, who cannot be unlike himself; for, if he redeemed the fathers, if he always assisted the Church, their posterity, whom he has adopted in the same manner, will never be suffered by him to be overwhelmed. We ought carefully to observe the word "know;" for to "know the name of the Lord" is to lay aside every false opinion, and to know him from his word, which is his true image, and next from his works. We must not imagine God according to the fancy of men, but must comprehend him as he declares himself to us. The Lord, therefore, concludes that he will actually assist them, and will fulfill all that he has promised, that the people may know that their hope has not been without foundation, and that they may be more and more confirmed in the knowledge of his name. We must keep in remembrance what we have elsewhere said about experimental knowledge, which confirms the truth of the word. That it is I who speak. The verb "to speak" relates to the promises. hnny (hinni,) Behold I, relates to actual power; as if he had said, "Although now there be nothing more than that there sound in your ears the words by which I promise what is hardly probable, yet you shall speedily obtain it; for I will actually accomplish what I promise." Hence we ought to draw the universal doctrine, that the promises of God and the fulfillment of them are linked together by an indissoluble bond. Whenever, therefore, Satan tempts and urges us to distrust, as if God had forsaken and abandoned us, we must come back to this point, and place our confidence in God, who never promises anything in vain. "If hitherto he does not perform, yet he will assist in due time."

Therefore my people shall know my name - The idea in this verse is, that his people should have such exhibitions of his power as to furnish to them demonstration that he was God.

Therefore my people shall know - The word לכן lachen, occurring the second time in this verse, seems to be repeated by mistake. It has no force nor emphasis as a repetition; it only embarrasses the construction and the sense. It was not in the copies from which the Septuagint, Syriac, and Vulgate were translated; it was not in the copy of the Septuagint from which the Arabic was translated; but in the Aldine and Complutensian editions δια τουτο is repeated; probably so corrected, in order to make it conformable with the Hebrew text.
I am he that Moth speak "I am he, Jehovah, that promised" - For הוא hu, the Bodleian MS. and another have יהוה, Jehovah; "For I am Jehovah that promised;" and another ancient MS. adds יהוה Jehovah after הוא hu. The addition of Jehovah seems to be right in consequence of what was said in the preceding line, "My people shall know my name."

Therefore my people shall know my name,.... His nature and perfections; his faithfulness in fulfilling his promises to them; his power in delivering them out of their bondage; and his justice in punishing their enemies.
Therefore they shall know on that day that I am he that doth speak: behold, it is I; they shall then see, when the people of God are delivered from the antichristian slavery and bondage, and when Babylon is fallen, that all the promises God has spoken are yea and amen; that Jesus Christ is the true and faithful witness; and that these are his true and faithful sayings, which he has spoken.

shall know in that day--when Christ shall reveal Himself to Israel sensibly; the only means whereby their obstinate unbelief shall be overcome (Psalm 102:16; Zac 12:10; Zac 14:5).

Shall know - They shall experience my power and goodness in fighting for them. In that day - When I shall redeem my people: which work was begun by the return of the Jews from Babylon, and perfected by the coming of the Messiah. Behold - That all these promises are the words of the omnipotent, unchangeable God.