'Mirror' in the Bible

Thou hast made an expanse with Him For the clouds -- strong as a hard mirror!

for we see now through a mirror obscurely, and then face to face; now I know in part, and then I shall fully know, as also I was known;

and we all, with unvailed face, the glory of the Lord beholding in a mirror, to the same image are being transformed, from glory to glory, even as by the Spirit of the Lord.

because, if any one is a hearer of the word and not a doer, this one hath been like to a man viewing his natural face in a mirror,