2 Corinthians 3:14-18

But the people’s minds were hardened, and to this day whenever the old covenant is being read, the same veil covers their minds so they cannot understand the truth. And this veil can be removed only by believing in Christ. Yes, even today when they read Moses’ writings, their hearts are covered with that veil, and they do not understand. But whenever someone turns to the Lord, the veil is taken away. For the Lord is the Spirit, and wherever the Spirit of the Lord is, there is freedom. So all of us who have had that veil removed can see and reflect the glory of the Lord. And the Lord—who is the Spirit—makes us more and more like him as we are changed into his glorious image.