Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
Ye are my witnesses - The Jews are my witnesses; because to them I have given predictions verified by the event, and in delivering them, I have often manifested my power (see Isaiah 43:3-4; Isaiah 44:8).
And my servant whom I have chosen - i:e., the whole Jewish people (Isaiah 41:8). And my servant whom I have chosen - i:e., the whole Jewish people (Isaiah 41:8).
That ye may know and believe me - trust in me.
Before me there was no God formed - before I existed none of the false gods were formed. "Formed" ( nowtsar (H3335)) applies to the idols, not to God. Revelation 1:11 uses the same language to prove the Godhead of Jesus as Isaiah here to prove the Godhead of Yahweh: "I am Alpha and Omega, the First and the Last."