'Witness' in the Bible

Behold, here I am: witness against me before the LORD, and before his anointed: whose ox have I taken? or whose ass have I taken? or whom have I defrauded? whom have I oppressed? or of whose hand have I received any bribe to blind mine eyes therewith? and I will restore it you.

And he said unto them, The LORD is witness against you, and his anointed is witness this day, that ye have not found ought in my hand. And they answered, He is witness.