2 Corinthians 3:12-16

So then, with this amazing hope living in us, we step out in freedom and boldness to speak the truth. We are not like Moses, who used a veil to hide the glory to keep the Israelites from staring at him as it faded away. Their minds were closed and hardened, for even to this day that same veil comes over their minds when they hear the words of the former covenant. The veil has not yet been lifted from them, for it is only eliminated when one is joined to the Messiah. So until now, whenever the Old Testament is being read, the same blinding comes over their hearts. But the moment one turns to the Lord with an open heart, the veil is lifted and they see.