'Robes' in the Bible

Now Joshua was clothed in unclean robes, and he was in his place before the angel.

And he made answer and said to those who were there before him, Take the unclean robes off him, and let him be clothed in clean robes;

And let them put a clean head-dress on his head. So they put a clean head-dress on his head, clothing him with clean robes: and to him he said, See, I have taken your sin away from you.