'Unveiled' in the Bible

But every woman praying or prophesying with her head unveiled dishonoreth her head; for it is one and the same thing as if she were shaven.

Judge ye in yourselves: is it seemly that a woman pray unto God unveiled?

But we all, with unveiled face beholding as in a mirror the glory of the Lord, are transformed into the same image from glory to glory, even as from the Lord the Spirit.