'You are My Witnesses' in the Bible

You are my witnesses," says the Lord, "my servant whom I have chosen, so that you may consider and believe in me, and understand that I am he. No god was formed before me, and none will outlive me.

I decreed and delivered and proclaimed, and there was no other god among you. You are my witnesses," says the Lord, "that I am God.

Don't panic! Don't be afraid! Did I not tell you beforehand and decree it? You are my witnesses! Is there any God but me? There is no other sheltering rock; I know of none.