The Church's interpretation from this straightforward, clear verse: Repentance is a positive transformation, producing a change of heart towards God. It is reflected in the good quality of one's life. Acts 2:38 is in accord with apostolic teaching derived from Jesus in Acts 2:42,and found throughout the 4 synoptic gospels. Jesus made use of baptism in the beginning of his ministry.John 3:22, but according to the gospel writings abandoned the practice after the arrest of John the Baptist. Matthew tells us in 28:19 that the sacramental usage of baptism was an instruction given to the Apostles by the risen Christ. Jesus spoke of this new baptism to Nicodemus, John 3:5.
Some verses on Baptism:
BORN AGAIN IN WATER BAPTISM
John 3:3,5 - Jesus says, "Truly, truly, unless one is born of water and the Spirit, he cannot enter the kingdom of God." When Jesus said "water and the Spirit," He was referring to baptism (which requires the use of water, and the work of the Spirit).
John 3:22 - after teaching on baptism, John says Jesus and the disciples did what? They went into Judea where the disciples baptized. Jesus' teaching about being reborn by water and the Spirit is in the context of baptism.
Acts 8:36 – the eunuch recognizes the necessity of water for his baptism. Water and baptism are never separated in the Scriptures.
Acts 10:47 - Peter says "can anyone forbid water for baptizing these people..?" The Bible always links water and baptism.
Acts 22:16 – Ananias tells Saul, “arise and be baptized, and wash away your sins.” The “washing away” refers to water baptism.
Titus 3:5-6 – Paul writes about the “washing of regeneration,” which is “poured out on us” in reference to water baptism. “Washing” (loutron) generally refers to a ritual washing with water.
2 Kings 5:14 - Naaman dipped himself seven times in the Jordan, and his flesh was restored like that of a child. This foreshadows the regenerative function of baptism, by water and the Holy Spirit.
Isaiah 44:3 - the Lord pours out His water and His Spirit. Water and the Spirit are linked to baptism. The Bible never separates them.
Ezek. 36:25-27 - the Lord promises He will sprinkle us with water to cleanse us from sin and give us a new heart and spirit. Paul refers to this verse in Heb. 10:22. The teaching of Ezekiel foreshadows the salvific nature of Christian baptism instituted by Jesus and taught in John 3:5, Titus 3:5, 1 Peter 3:21 and Acts 22:16.
BAPTISM IS SALVIFIC NOT SYMBOLIC
Matt. 28:19-20 - Jesus commands the apostles to baptize all people "in the name of the Father, Son and Holy Spirit." Many Protestant churches are now teaching that baptism is only a symbolic ritual, and not what actually cleanses us from original sin. This belief contradicts Scripture and the 2,000 year-old teaching of the Church.
Matt. 28:19-20 - Jesus commands the apostles to baptize all people "in the name of the Father, Son and Holy Spirit." Many Protestant churches are now teaching that baptism is only a symbolic ritual, and not what actually cleanses us from original sin. This belief contradicts Scripture and the 2,000 year-old teaching of the Church.
Matt. 28:19-20; Acts 2:38 - there is nothing in these passages or elsewhere in the Bible about baptism being symbolic. There is also nothing about just accepting Jesus as personal Lord and Savior in order to be saved.
Mark 16:16 - Jesus said "He who believes AND is baptized will be saved." Jesus says believing is not enough. Baptism is also required. This is because baptism is salvific, not just symbolic. The Greek text also does not mandate any specific order for belief and baptism, so the verse proves nothing about a “believer’s baptism.”
John 3:3,5 - unless we are "born again" of water and Spirit in baptism, we cannot enter into the kingdom of God. The Greek word for the phrase "born again" is "anothen" which literally means “begotten from above.” See, for example, John 3:31 where "anothen" is so used. Baptism brings about salvation, not just a symbolism of our salvation.
Acts 8:12-13; 36; 10:47 - if belief is all one needs to be saved, why is everyone instantly baptized after learning of Jesus?
Acts 16:15; 31-33; 18:8; 19:2,5 - these texts present more examples of people learning of Jesus, and then immediately being baptized. If accepting Jesus as personal Lord and Savior is all one needs to do to be saved, then why does everyone in the early Church immediately seek baptism?
Acts 9:18 - Paul, even though he was directly chosen by Christ and immediately converted to Christianity, still had to be baptized to be forgiven his sin. This is a powerful text which demonstrates the salvific efficacy of water baptism, even for those who decide to give their lives to Christ.
Acts 22:16 - Ananias tells Paul, "arise and be baptized, and wash away your sins," even though Paul was converted directly by Jesus Christ. This proves that Paul's acceptance of Jesus as personal Lord and Savior was not enough to be forgiven of his sin and saved. The sacrament of baptism is required.
Acts 22:16 - further, Ananias' phrase "wash away" comes from the Greek word "apolouo." "Apolouo" means an actual cleansing which removes sin. It is not a symbolic covering up of sin. Even though Jesus chose Paul directly in a heavenly revelation, Paul had to be baptized to have his sins washed away.
Rom. 6:4 - in baptism, we actually die with Christ so that we, like Him, might be raised to newness of life. This means that, by virtue of our baptism, our sufferings are not in vain. They are joined to Christ and become efficacious for our salvation.
Gal. 3:27 - whoever is baptized in Christ puts on Christ. Putting on Christ is not just symbolic. Christ actually dwells within our soul.
Col. 2:12 - in baptism, we literally die with Christ and are raised with Christ. It is a supernatural reality, not just a symbolic ritual. The Scriptures never refer to baptism as symbolic.
Titus 3:5-7 – “He saved us by the washing of regeneration and renewal in the Holy Spirit, which He poured out on us richly through Jesus Christ, so that we might be justified by His grace and become heirs of eternal life.” This is a powerful text which proves that baptism regenerates our souls and is thus salvific. The “washing of regeneration” “saves us.” Regeneration is never symbolic, and the phrase “saved us” refers to salvation. By baptism, we become justified by His grace (interior change) and heirs of eternal life (filial adoption). Because this refers to baptism, the verse is about the beginning of the life in Christ. No righteous deeds done before baptism could save us. Righteous deeds after baptism are necessary for our salvation.
There is also a definite parallel between John 3:5 and Titus 3:5: (1) John 3:5 – enter the kingdom of God / Titus 3:5 – He saved us. (2) John 3:5 – born of water / Titus 3:5 – washing. (3) John 3:5 – born of the Spirit / Titus 3:5 – renewal in the Spirit.
Heb. 10:22 - in baptism, our hearts are sprinkled clean from an evil conscience (again, dealing with the interior of the person) as our bodies are washed with pure water (the waters of baptism). Baptism regenerates us because it removes original sin, sanctifies our souls, and effects our adoption as sons and daughters in Jesus Christ.
1 Peter 3:21 - Peter expressly writes that “baptism, corresponding to Noah's ark, now saves you; not as a removal of dirt from the body, but for a clear conscience. “ Hence, the verse demonstrates that baptism is salvific (it saves us), and deals with the interior life of the person (purifying the conscience, like Heb. 10:22), and not the external life (removing dirt from the body). Many scholars believe the phrase "not as a removal of dirt from the body" is in reference to the Jewish ceremony of circumcision (but, at a minimum, shows that baptism is not about the exterior, but interior life). Baptism is now the “circumcision” of the new Covenant (Col. 2:11-12), but it, unlike the old circumcision, actually saves us, as Noah and his family were saved by water.
Again, notice the parallel between Heb. 10:22 and 1 Peter 3:21: (1) Heb. 10:22 – draw near to the sanctuary (heaven) / 1 Peter 3:21 – now saves us. (2) Heb. 10:22 – sprinkled clean, washed with pure water / 1 Peter 3:20-21 – saved through water, baptism. (3) Heb. 10:22 – from an evil conscience (interior) / 1 Peter 3:21 – for a clear conscience (interior). Titus 3:6 and 1 Peter 3:21 also specifically say the grace and power of baptism comes “through Jesus Christ” (who transforms our inner nature).
Mark 16:16 - Jesus says that he who believes and is baptized will be saved. However, the Church has always taught that baptism is a normative, not an absolute necessity. There are some exceptions to the rule because God is not bound by His sacraments.
Luke 23:43 - the good thief, although not baptized, shows that there is also a baptism by desire, as Jesus says to him that he will be in paradise. It should also be noted that when Jesus uses the word "paradise," He did not mean heaven. Paradise, from the Hebrew "sheol" meant the realm of the righteous dead. This was the place of the dead who were destined for heaven, but who were captive until the Lord's resurrection. Hence, the good thief was destined for heaven because of his desire to be with Jesus.
Matt. 20:22-23; Mark 10:38-39; Luke 12:50 - there is also a baptism by blood. Lord says, "I have a baptism to be baptized with" referring to His death. Hence, the Church has always taught that those martyred for the faith may be saved without water baptism (e.g., the Holy Innocents).
Mark 10:38 - Jesus says "are you able...to be baptized with the baptism with which I am baptized?," referring to His death.
1 John 5:6 - Jesus came by water and blood. He was baptized by both water and blood. Martyrs are baptized by blood.