2. Let us see what the point is which these witnesses are called to prove (v. 12): You are my witnesses, saith the Lord, that I am God. Note, Those who do themselves acknowledge that the Lord is God should be ready to testify what they know of him to others, that they also may be brought to the acknowledgement of it. I believed, therefore have I spoken. Particularly, "Since you cannot but know, and believe, and understand, you must be ready to bear record, (1.) That I am he, the only true God, that I am a being self-existent and self-sufficient; I am he whom you are to fear, and worship, and trust in. Nay (v. 13), before the day was (before the first day of time, before the creation of the light, and, consequently, from eternity) I am he." The idols were but of yesterday, new gods that came newly up (Deut. xxxii. 17); but the God of Israel was from everlasting. (2.) That there was no God formed before me, nor shall be after me. The idols were gods formed (dii facti—made gods, or rather fictitii—fictitious); by nature they were no gods, Gal. iv. 8. But God has a being from eternity, yea, and a religion in this world before there were either idols or idolaters (truth is more ancient than error); and he will have a being to eternity, and will be worshipped and glorified when idols are famished and abolished and idolatry shall be no more. True religion will keep its ground, and survive all opposition and competition. Great is the truth, and will prevail. (3.) That I, even I, am the Lord, the great Jehovah, who is, and was, and is to come; and besides me there is no Saviour, v. 11. See what it is that the great God glories in, not so much that he is the only ruler as that he is the only Saviour; for he delights to do good: he is the Saviour of all men, 1 Tim. iv. 10.