“2 Corinthians 3:18” in the KJV reads, “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.”

Paul is speaking at the close of a passage where he contrasts the old covenant ministry associated with Moses and the giving of the law with the new covenant ministry carried out by Christ and applied by the Holy Ghost. In the earlier verses of the chapter, Paul recalls how Moses, after speaking with the LORD, came down with a shining face and “put a vail over his face” (the KJV spelling) when he spoke to the children of Israel. Paul uses that scene to describe something larger: under the old covenant there was a real glory, yet it was a glory connected with a ministry that, by itself, could not give life and righteousness to sinners, and there was a kind of obscurity and distance built into Israel’s experience. That “vail” becomes, in Paul’s argument, a symbol of what stands between the human heart and the clear apprehension of God’s glory when one remains in unbelief and clings to the law as the way of righteousness. Then he says, “when it shall turn to the Lord, the vail shall be taken away.” With that as the immediate context, verse 18 describes what it looks like when the veil is removed and the Spirit grants access and sight.

The opening words, “But we all,” are important. Paul is no longer speaking only of Moses as a singular figure with a singular radiance; he is describing the ordinary condition and privilege of believers under the new covenant. The glory that once seemed concentrated in one mediator is now, by grace, something the whole company of the redeemed may behold. “With open face” means uncovered face, unveiled face, a face that does not need to be hidden and is not barred from looking. It also suggests a boldness and nearness: believers are not kept at a distance from the presence and splendour of God as though it were unsafe to look, because Christ has dealt with sin and the Spirit gives liberty. The “open face” is not a claim that Christians naturally deserve to gaze on divine glory, but that God has made a way for them to do so without the old barrier of condemnation and hardness of heart.

The phrase “beholding as in a glass the glory of the Lord” gathers up rich symbolism. In KJV language, “glass” often means a mirror, something that reflects rather than something you look through with modern clarity. The thought is that in this present life believers behold the Lord’s glory truly, yet by means—reflected, mediated, set before them in a way fitted to their weakness. That “glass” can be understood in the immediate flow of Paul’s argument as the gospel itself, the new covenant revelation of God in Christ, where the glory of the Lord is set forth for faith to apprehend. It is not that the glory is unreal, but that it is perceived by faith through God’s appointed revelation rather than by unmediated sight. In that sense, it is the opposite of the old veil: the veil concealed and dulled; the “glass” reveals, though in a manner suited to the present age.

“The glory of the Lord” is not merely brightness. In Scripture it includes the weight and excellence of who God is—his holiness, mercy, truth, righteousness, power—now especially made known in the face of Jesus Christ and in the accomplishment of redemption. Paul’s larger theme is that the new covenant is a ministry of the Spirit that brings life and righteousness; therefore the “glory of the Lord” here is bound up with God’s saving self-disclosure in Christ. To behold that glory is to be taken up with the reality of what God is like, what God has done, and who Christ is, not as a distant concept but as an encountered truth received with faith.

Then comes the consequence: “are changed into the same image.” The act of beholding is not passive observation; it is transformative communion. The “same image” is the image of the Lord whose glory is being beheld. As believers look upon Christ by faith, through the Spirit’s work in the gospel, they are progressively conformed to him. This captures a deep biblical pattern: what the heart trusts, loves, and worships shapes the life. Under the old covenant, the law could show God’s standard and expose sin, but it could not, by itself, remake the heart. Under the new covenant, the Spirit writes God’s will within and changes the person, and Paul expresses that change as a movement into likeness—real moral and spiritual renovation that makes a believer increasingly reflect the character of Christ.

The words “from glory to glory” communicate an ongoing, progressive transformation. It is not a single moment of outward brightness like Moses’ face, which faded and required a veil; it is a continuing work that advances in degrees. One measure of glory leads to another. The Christian life, as Paul depicts it here, is not merely a change of status but a change of nature that unfolds. The glory is both the source and the destination: believers behold glory and are carried onward into glory, increasingly reflecting what they behold. This also implies durability in contrast to the fading radiance associated with Moses’ ministry; the new covenant work does not diminish, because it is wrought by the living Spirit.

Finally, “even as by the Spirit of the Lord” grounds the whole process in divine agency. The change is real and experienced by “we all,” yet it is not self-produced. It is “by the Spirit,” meaning the Holy Ghost is the effective power of this transformation. Paul has already said, “the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.” That liberty is not license; it is freedom from the condemning power of the law as a covenant of works, freedom from the veil of hardness and unbelief, and freedom to look upon God’s glory without being destroyed, because reconciliation has been made. The Spirit gives access, grants sight, and performs the inward work that makes the believer resemble the Lord.

Taken together, the verse portrays a central new covenant reality: in Christ, believers are granted unveiled access to the revelation of God’s glory, and that very beholding becomes the means by which the Spirit transforms them into Christlikeness in an ever-increasing way. The old scene of Moses’ veiled face becomes a backdrop to highlight the greater privilege now given to all who are in Christ: not a temporary reflected radiance that must be covered, but a Spirit-wrought, progressive conformity to the Lord’s image that advances “from glory to glory.”