2 Corinthians 3:15-16
15. the veil is—rather, "a veil lieth upon their heart" (their understanding, affected by the corrupt will, Joh 8:43; 1Co 2:14). The Tallith was worn in the synagogue by every worshipper, and to this veil hanging over the breast there may be an indirect allusion here (see on 1Co 11:4): the apostle making it symbolize the spiritual veil on their heart.
16. Moses took off the veil on entering into the presence of the Lord. So as to the Israelites whom Moses represents, "whensoever their heart (it) turns (not as English Version, 'shall turn') to the Lord, the veil is (by the very fact; not as English Version, 'shall be') taken away." Ex 34:34 is the allusion; not Ex 34:30, 31, as ALFORD thinks. Whenever the Israelites turn to the Lord, who is the Spirit of the law, the veil is taken off their hearts in the presence of the Lord: as the literal veil was taken off by Moses in going before God: no longer resting on the dead letter, the veil, they by the Spirit commune with God and with the inner spirit of the Mosaic covenant (which answers to the glory of Moses' face unveiled in God's presence).