[dangus]

Rome teaches a single sacrifice accomplished the JUSTIFICATION of all men. The mass is not a repeat of that sacrifice; if it were, we would be CAUSING the suffering of Christ by subjecting him to that sacrfice again. The mass brings that sacrifice, which happened once for all, into the present time, and presents it to us here and now, as if we were there experiencing it with the disciples. This is all very, very basic to Catholic liturgy.

[wolfman]

Jesus is the one who took our place on the cross (1 Pet. 2:24), became sin on our behalf (2 Cor. 5:21), and turned away the wrath of God from us (Rom. 5:9) by being a propitiation (1 John 2:2) that turned away the wrath of God. He was punished in our place. Therefore, Jesus was our substitution. The righteous work of Christ is imputed to the believer by grace (Titus 3:7) and through faith (Rom. 5:1). This justification is a legal action on the part of God ‘reckoning’ the believer as having satisfied the Law — all of the Law.

It necessarily follows that to be justified in God’s eyes, is to be fully justified. It is not ‘part’ of the Law that must be satisfied, but all of it. Perfection is the standard. Likewise, it is not ‘part’ of our sins that were born by Christ, but all of them. This justification includes all of the sins of the believer (past, present, and future) or else we could not be justified.