Glass

A glass in the King James Bible is a mirror, and it shows up in three useful pictures. Paul writes, “For now we see through a glass, darkly; but then face to face,” admitting that what we know now is partial. In 2 Corinthians 3:18 believers behold the glory of the Lord in a glass and are changed. James has a plainer use: a hearer of the word who does not act is like a man who looks at his face, goes away, and forgets what he looked like. A mirror shows what is there, and it only helps if the person then does something.

4 verses

1 Corinthians

1 Corinthians 13:12

For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.

2 Corinthians

2 Corinthians 3:18

But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the Lord.

James

James 1:23

For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass:

James 1:24

For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was.

From Easton's Bible Dictionary

Matthew George Easton, 1897

Was known to the Egyptians at a very early period of their national history, at least B.C. 1500. Various articles both useful and ornamental were made of it, as bottles, vases, etc. A glass bottle with the name of Sargon on it was found among the ruins of the north-west palace of Nimroud. The Hebrew word zekukith (Job 28:17), rendered in the Authorized Version “crystal,” is rightly rendered in the Revised Version “glass.” This is the only allusion to glass found in the Old Testament. It is referred to in the New Testament in Rev. 4:6; 15:2; 21:18, 21. In Job 37:18, the word rendered “looking-glass” is in the Revised Version properly rendered “mirror,” formed, i.e., of some metal. (Comp. Ex. 38:8: “looking-glasses” are brazen mirrors, R.V.). A mirror is referred to also in James 1:23.

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From Smith's Bible Dictionary

William Smith, 1884

The Hebrew word occurs only in (Job 28:17) where in the Authorized Version it is rendered "crystal." In spite of the absence of specific allusion to glass in the sacred writings, the Hebrews must have been aware of the invention from paintings representing the process of glass-blowing, which have been discovered at Beni-hassan, and in tombs at other places, we know that the invention vas known at least 3500 years ago. Fragments too of wine-vases as old as the exodus have been discovered in Egypt. The art was also known to the ancient Assyrians. In the New Testament glass is alluded to as an emblem of brightness. (Revelation 4:6; 15:2; 21:18)

Based on Nave's Topical Bible by Orville J. Nave (1896). Dictionary entries from Easton's Bible Dictionary and Smith's Bible Dictionary. Public domain. KJV scripture text, public domain.