You Are My Witnesses That I Am God

Isaiah 43:10-13

10   You are my witnesses, says the LORD, and my servant whom I have chosen: that you may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
11   I, even I, am the LORD; and beside me there is no saviour.
12   I have declared, and have saved, and I have shewed, when there was no strange god among you: therefore you are my witnesses, says the LORD, that I am God.
13   Yes, before the day was I am he; and there is none that can deliver out of my hand: I will work, and who shall let it?