World Wide Study Bible
a Bible passage
18And all of us, with unveiled faces, seeing the glory of the Lord as though reflected in a mirror, are being transformed into the same image from one degree of glory to another; for this comes from the Lord, the Spirit.
18. But we all—Christians, as contrasted with the Jews who have a veil on their hearts, answering to Moses' veil on his face. He does not resume reference to ministers till 2Co 4:1.
with open face—Translate, "with unveiled face" (the veil being removed at conversion): contrasted with "hid" (2Co 4:3).
are changed into the same image—namely, the image of Christ's glory, spiritually now (Ro 8:29; 1Jo 3:3); an earnest of the bodily change hereafter (Php 3:21). However many they be, believers all reflect the same image of Christ more or less: a proof of the truth of Christianity.
from glory to glory—from one degree of glory to another. As Moses' face caught a reflection of God's glory from being in His presence, so believers are changed into His image by beholding Him.
even as, &c.—Just such a transformation "as" was to be expected from "the Lord the Spirit" (not as English Version, "the Spirit of the Lord") [Alford] (2Co 3:17): "who receives of the things of Christ, and shows them to us" (Joh 16:14; Ro 8:10, 11). (Compare as to hereafter, Ps 17:15; Re 22:4).