Catholicism is a man conceived religion.
There is nothing in the New Testament that resembles the Catholic religion, except for the religion of the Pharisees. The Pharisees wore long robes and dressed different than the ordinary Jew because they wanted to stand out. Same way with the Catholic church, they want to stand out. To say that Catholicism is a showy religion may be an understatement.
Catholics believe that Man's old Adamic nature can be rehabilitated and made pleasing to God by works, which they call by grace or by an infused righteousness. The virtues of Jesus Christ are infused into them by the Holy Spirit and they become righteous in God's eyes, so they say. The Bible knows nothing of an infused righteousness. The word "Infused" is not in the Bible. Paul says that we become righteous in God's eyes by faith.
"But to him that does no works, but BELIEVES on him that justifies the ungodly, his FAITH is counted for righteousness" Romans 4:5.
Faith counts for righteousness, not works. The reason that faith counts for righteousness and not works is because the work of salvation has already been accomplished by Jesus Christ. Before Jesus died on the cross he said, "It is finished". What he meant when he said that is that he had done all that was necessary for the salvation of fallen man. This is what Paul meant when he said, "And you are complete in him" Colossians 2:10. Jesus as our new Adam and representative has reconciled us and the world unto God, 2 Corinthians 5:18, 19. Catholics do not believe that they have been reconciled to God by Jesus Christ. They believe that they are reconciled to God by the Catholic church.
In the Gospel, God puts to death the old Adamic nature of man in the crucifixon of Jesus Christ, Romans 6:6. This is why Paul Said, "I have been crucified with Christ" Galatians 2:20. Paul identified himself with Christ. Paul saw his old Adamic sin nature as crucified with Christ. Nothing was rehabilitated. In the resurrection of Jesus God brings forth a new humanity, not a rehabilitated humanity.
"Therefore if any man be "In Christ" he is a new creation: old things are passed away; behold, all things have become new" 2 Corinthians 5:17.
God now sees us as new creations in Jesus Christ. God and his Son Jesus Christ like new things, not those old rehabilitated sinful things. As far as God is concerned those that have come to Christ to be saved by him are perfect and complete "In Jesus Christ". God can find no sin in the man that confesses with his mouth the Lord Jesus and believes in his heart that God has raised him from the dead, Romans 10:9.
What Catholics are trying to do in their flesh, God has already done in Jesus Christ.