Commentaries
3:12-18 It is the duty of the ministers of the gospel to use great plainness, or clearness, of speech. The Old Testament believers had only cloudy and passing glimpses of that glorious Saviour, and unbelievers looked no further than to the outward institution. But the great precepts of the gospel, believe, love, obey, are truths stated as clearly as possible. And the whole doctrine of Christ crucified, is made as plain as human language can make it. Those who lived under the law, had a veil upon their hearts. This veil is taken away by the doctrines of the Bible about Christ. When any person is converted to God, then the veil of ignorance is taken away. The condition of those who enjoy and believe the gospel is happy, for the heart is set at liberty to run the ways of God's commandments. They have light, and with open face they behold the glory of the Lord. Christians should prize and improve these privileges. We should not rest contented without knowing the transforming power of the gospel, by the working of the Spirit, bringing us to seek to be like the temper and tendency of the glorious gospel of our Lord and Saviour Jesus Christ, and into union with Him. We behold Christ, as in the glass of his word; and as the reflection from a mirror causes the face to shine, the faces of Christians shine also.
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).
as in a glass—in a mirror, namely, the Gospel which reflects the glory of God and Christ (2Co 4:4; 1Co 13:12; Jas 1:23, 25).
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).