Transformed By Christ
Under the Old Covenant, only Moses ascended the mountain and had fellowship with God; but under the New Covenant, all believers have the privilege of communion with Him. Through Jesus Christ, we may enter into the very holy of holies (Heb. 10:19–20)—and we don’t have to climb a mountain!
The “mirror” is a symbol of the Word of God (James 1:22–25). As we look into God’s Word and see God’s Son, the Spirit transforms us into the very image of God
If we were to ask Paul in what way believers behold the glory of God, his answer would be that they do so as the ‘veils’ are removed from their minds so that the truth of the gospel is no longer hidden from them. Thus it is in ‘the light of the gospel’ that they behold ‘the glory of Christ, who is the likeness of God’, and they see ‘the light of the knowledge of the glory of God in the face of Christ’ (4:3–6).
Paul suggests that believers will progress through ever-greater degrees of glory (doxa in Greek). This may mean that they will learn and grow more in their relationship with Him over time. Alternatively, this progress may begin with the indwelling presence of the Holy Spirit and culminate in the transformation of the physical body into a glorious one (1 Cor 15:50–54).
Metamorphosis describes the process that changes an insect from a larva into a pupa and then into a mature insect. The changes come from within.
If the Corinthians desired to become Christlike, they would need to look intently at God’s Word. As believers do this, they go from glory to glory, that is, from one degree of glory to another.
v. 18. Those who yield to the working of the Holy Spirit may be made more and more into the image of Christ (Rom. 8:29). The Holy Spirit longs to bring us into conformity to the “family likeness” even before the hour when we shall see Him face to face and be made like Him.