Paul used the word “mirror” twice in his writings. Can you think of where those are? First, he taught that before the New Testament was completed and while the early Christians were relying on prophets and inspired men to teach them God’s will, those Christians were actually only able to “see in a mirror, dimly” (1 Cor. 13:12), for they did not have the full and complete (“perfect,” 13:10) revelation of God. An old, brass mirror would be kind of limiting.
But, the second time he used the word “mirror” was in contrasting the old covenant and the new covenant (i.e., the New Testament). In learning, understanding and loving the New Testament, Paul said Christians are “beholding” (through continual practice) “as in a mirror” (clearly this time) “the glory of the Lord,” and when they do that, they “are being transformed into the same image from glory to glory, just as by the Spirit of the Lord” (2 Cor. 3:18).
How often are you “beholding” Jesus in your copy of the completed New Testament? Are you endeavoring every day to be “transformed” into His image?