2 Cor 3:16 But whenever their heart turns to the Lord, the veil is taken away.
2 Cor 3:17 And the Lord is the Spirit; and where the Spirit of the Lord is, there is freedom.
2Cor 3:18 But we all with unveiled face, beholding and reflecting like a mirror the glory of the Lord, are being transformed into the same image from glory to glory, even as the Lord Spirit.
What is the veril in v16? Actually our turned-away heart is the veil. To turn our heart to the Lord is to take away the veil. Lord, I turn my heart to You!
To behold the glory of the Lord is to see the Lord ourselves, and to reflect the glory of the Lord is to enable others to see Him through us. Our face should be fully unveiled that we may see well and reflect properly.
We are being transformed metabolically to have His life shape by His life power with His life essence; this is, we are being transfigured, mainly by the renewing of our mind into His image.
The new covenant ministers are the persons (1) whose hearts have turned to the Lord, (2) whose faces are unveiled, (3) who are enjoying the Lord as the Spirit, freeing them from the bondage of the law, and (4) who are being transformed into the image of the Lord by beholding and reflecting Him. Through such a process of transformation they are constituted ministers of Christ by the Spirit with the elements of Christ's person and work. Hence, their person is constituted of and with Christ, and their ministry is to minister Christ to others, infusing them with the all-inclusive Christ as the indwelling, life-giving Spirit. All believers should imitate such ministers to be the same kind of person and to accomplish the same kind of ministry.
(Taken from the New Testament Recovery Version)