2 Cor. 3:7-11 (ESV)
Now if the ministry of death, carved in letters on stone, came with such glory that the Israelites could not gaze at Moses' face because of its glory, which was being brought to an end,  will not the ministry of the Spirit have even more glory?  For if there was glory in the ministry of condemnation, the ministry of righteousness must far exceed it in glory.  Indeed, in this case, what once had glory has come to have no glory at all, because of the glory that surpasses it.  For if what was being brought to an end came with glory, much more will what is permanent have glory.
The ministry of death, carved in letters of stone. What is this ministry of death? It is the ministry of the law devoid of the gospel. This is a very easy conclusion to come to, as the law is carved in stone. God gave the Ten Commandments on Mt. Sinai. These are the only words God ever wrote with his very own hand, and he carved them in stone. It is a ministry of death, because the law can do nothing but condemn and accuse. The law kills. The law once had glory, it was on top. King of the hill, it pushed all others down. But then it met its match. Christ assaulted the hill. He died on the hill, but in his death He conquered the law, but fulfilling it for us. He conquered death with his resurrection. He has given us a ministry of righteousness. And this ministry of righteousness is the gospel, the forgiveness of sins that declares us righteous in Christ, who lives and reigns to all eternity. His righteousness is permanent.