'You are My Witnesses' in the Bible

“You are My witnesses,” declares the Lord,“And My servant whom I have chosen,So that you may know and believe MeAnd understand that I am He.Before Me there was no God formed,And there will be none after Me.

“It is I who have declared and saved and proclaimed,And there was no strange god among you;So you are My witnesses,” declares the Lord,“And I am God.

‘Do not tremble and do not be afraid;Have I not long since announced it to you and declared it?And you are My witnesses.Is there any God besides Me,Or is there any other Rock?I know of none.’”