BusyTarpDuster2017 said:
How is it that by baptism all sins are forgiven and the punishment for them removed, when in Revelation 1:5 it says it was the blood of Christ that does that?
"Grace to you and peace from him who is and who was and who is to come, and from the seven spirits who are before his throne, and from Jesus Christ the faithful witness, the firstborn of the dead, and the ruler of kings on earth.
To him who loves us and has freed us from our sins by his blood and made us a kingdom, priests to his God and Father, to him be glory and dominion forever and ever. Amen."
Sorry for the delay in getting back with you. I wanted to confirm my thought with a Catholic Apologist and the following is what he responded:
It is Jesus' sacrifice (i.e., 'blood') that paid the price for the forgiveness of sins, but it is ordinarily through the sacramentsbeginning with baptismthat this forgiveness is offered. Thus, the Church can echo St. Peter's words, "be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins
BusyTarpDuster2017 said:
Is the catechism referring to "baptism" as being baptized through Jesus' sacrifice, i.e. his blood? If so, then what does water baptism achieve, specifically, according to the Catholic church?
As stated earlier, baptism obtains the forgiveness of all sin, including original sin and personal sin.
Many of the earliest church fathers agree:
Shepard of Hermas - 140 AD:
" 'I have heard, sir,' said I, 'from some teacher, that there is no other repentance except that which took place when we
went down into the water and obtained the remission of our former sins.' He said to me, 'You have heard rightly, for so it is'"
Theophilus - 181 AD:
"Moreover, those things which were created from the waters were blessed by God, so that this might also be a sign that men would at a future time receive repentance and
remission of sins through water and the bath of regeneration all who proceed to the truth and are born again and receive a blessing from God"
Justin Martyr - 150 AD:
Then they are led by us to a place
where there is water, and they are reborn in the same kind of rebirth in which we ourselves were reborn: In the name of God, the Lord and Father of all, and of our Savior Jesus Christ, and of the Holy Spirit, they receive the washing of water. For Christ said, 'Unless you be reborn, you shall not enter the kingdom of heaven.'…
Cyril of Jerusalem - 350 AD
"
If any man does not receive baptism, he does not have salvation. The only exception is the martyrs, who, even without water, will receive baptism, for the Savior calls martyrdom a baptism (cf. Mark 10:38)….Bearing your sins, you go down into the water; but the calling down of grace seals your soul and does not permit that you afterwards be swallowed up by the fearsome dragon. You go down dead in your sins, and you come up made alive in righteousness"
I could site several more, but my whole point of this is to demonstrate what those closest to the apostles believed and practiced.
None believed that baptism was just a symbol.