14 But their minds were made dull, for to this day the same veil remains when the old covenant is read. It has not been removed, because only in Christ is it taken away. 15 Even to this day when Moses is read, a veil covers their hearts. 16 But whenever anyone turns to the Lord, the veil is taken away. 17 Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. 18 And we all, who with unveiled faces contemplate the Lord’s glory, are being transformed into his image with ever-increasing glory, which comes from the Lord, who is the Spirit. — 2 Cor. 3:14-18 NIV
Even though the veil was rent when Jesus died on the cross, there are those who who will hear the news and not accept it as truth. Whether they claim to believe the law or not, their refusal of the offer of salvation leaves them under the law. Therefore, when the Old Testament is read, a veil covers their heart. They hear but they refuse to understand. The veil is not removed from our eyes and hearts until we accept Jesus as our Savior. The law and the veil keep us in bondage and lead to death. When we accept Jesus as our Savior, the veil is removed and the Holy Spirit comes to abide in us giving us freedom and life. At that moment, we are saved from the wrath of God and eternal punishment. But, God wants us to have more than just salvation, He wants us to understand that now we are being sanctified or set apart for His service and for His glory. He wants us to get to know Him, to have a relationship with Him and participate in the abundant life. For that to happen, we must spend time contemplating and meditating on His Word. As we spend time with God, the Holy Spirit is transforming us into the image of God.
2 Dear friends, now we are children of God, and what we will be has not yet been made known. But we know that when Christ appears, we shall be like him, for we shall see him as he is. 3 All who have this hope in him purify themselves, just as he is pure. — 1 John 3:2, 3 NIV