Baptism
Baptism is the rite of washing with water that marks a person's entry into the community of the disciples of Jesus Christ. It appears first in the ministry of John the Baptist, is received by Jesus himself in the Jordan, is commanded by the risen Lord in the Great Commission (Matthew 28:19) and is practiced by the apostolic church from the day of Pentecost onward (Acts 2:38-41).
The New Testament explains baptism above all as a sign of union with Christ in his death and resurrection (Romans 6:3-4; Colossians 2:12). In evangelical Protestant theology it is an ordinance, or sacrament, instituted by Christ: a visible sign of the grace received through faith, not a work that saves by itself. Christians have long differed about who should be baptized and how; this entry presents the biblical data and notes those differences briefly and respectfully.
1. Etymology and meaning
The English word comes, through Latin, from the Greek baptizō, a form of baptō, “to dip.” Its basic sense is “to dip, immerse, plunge,” and by extension “to wash.” In the Greek Old Testament Naaman “dipped himself” (ebaptisato) seven times in the Jordan (2 Kings 5:14). In the Gospels the verb can also describe ordinary ritual washing, as when a Pharisee was surprised that Jesus did not first wash before dinner (Luke 11:38; see Mark 7:4).
The noun baptisma, “baptism,” is used in the New Testament for the rite of John and of the church, while baptismos usually means ceremonial washings (Hebrews 6:2; 9:10). John is called ho baptistēs, “the Baptist” or “the one who baptizes.” The Old Testament has no single word for baptism, but it prescribes many purifying washings with water (Leviticus 15; Numbers 19), which form part of the background of the rite.
2. Historical context and biblical use
The background
The Law required washings to restore ritual purity, and the prophets promised a deeper cleansing: “I will sprinkle clean water on you, and you shall be clean,” together with a new heart and God's Spirit within (Ezekiel 36:25-27; see Zechariah 13:1). In the time of Jesus, the Qumran community practiced repeated ritual immersions. Jewish sources also describe an immersion for Gentile converts, but whether this practice already existed before John is debated.
The baptism of John
John appeared in the wilderness “proclaiming a baptism of repentance for the forgiveness of sins” (Mark 1:4), and people were baptized by him in the Jordan, confessing their sins (Matthew 3:6). Later he baptized at Aenon near Salim, “because water was plentiful there” (John 3:23). His baptism was preparatory: he baptized with water, but announced one mightier than himself who would baptize with the Holy Spirit and fire (Matthew 3:11). Jesus affirmed that John's baptism was from heaven (Matthew 21:25).
The baptism of Jesus
When Jesus came to be baptized, John tried to prevent him, but Jesus answered that it was fitting “to fulfill all righteousness” (Matthew 3:13-15). The sinless Son identified himself with sinful people whose place he had come to take. As he came up from the water, the heavens were opened, the Spirit descended like a dove and the Father's voice declared, “This is my beloved Son, with whom I am well pleased” (Matthew 3:16-17), words that echo Psalm 2:7 and Isaiah 42:1. Here the Father, the Son and the Spirit appear together. Jesus later called his coming suffering a “baptism” (Mark 10:38; Luke 12:50), and during his ministry his disciples also baptized (John 4:1-2).
Baptism in the apostolic church
After the resurrection Jesus commanded, “Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit” (Matthew 28:19). The book of Acts shows this command being obeyed: about three thousand baptized at Pentecost (Acts 2:41), men and women in Samaria (Acts 8:12), the Ethiopian eunuch (Acts 8:36-38), Saul of Tarsus (Acts 9:18), Cornelius and his household (Acts 10:47-48), Lydia and the jailer at Philippi with their households (Acts 16:15, 33), many Corinthians (Acts 18:8) and disciples of John at Ephesus (Acts 19:1-7). The pattern is consistent: the gospel is preached, people repent and believe, and they are baptized without delay.
3. Key passages
Matthew 28:19-20. Baptism belongs to the church's mission until the end of the age. It is administered “in the name” of the triune God, that is, it places the person under his ownership and care, and it is joined to teaching disciples to observe all that Christ commanded.
Acts 2:38-39. Peter calls his hearers to repent and be baptized in the name of Jesus Christ for the forgiveness of sins, with the promise of the Holy Spirit, a promise “for you and for your children and for all who are far off.” Repentance and baptism are joined as the response to the gospel.
Romans 6:3-4. Those who were baptized into Christ Jesus were baptized into his death; they were buried with him so that, as Christ was raised, they too might walk in newness of life. Baptism portrays the believer's union with Christ and therefore a break with the old life of sin.
Colossians 2:11-12. Believers have received a circumcision made without hands, having been buried with Christ in baptism and raised with him “through faith in the powerful working of God.” The text links baptism with the covenant sign of circumcision and stresses that its reality is received through faith.
1 Peter 3:20-21. Recalling Noah and the eight persons saved through water, Peter says that baptism now saves, “not as a removal of dirt from the body but as an appeal to God for a good conscience, through the resurrection of Jesus Christ.” The power is not in the water but in the risen Christ, whom the believer calls upon.
4. Theological significance
Baptism is first a sign of union with Christ. Paul says that all who were baptized into Christ have “put on Christ” (Galatians 3:27) and that by one Spirit all were baptized into one body (1 Corinthians 12:13). It is also a sign of cleansing from sin (Acts 22:16), of the gift of the Spirit and of entry into the visible church. There is “one Lord, one faith, one baptism” (Ephesians 4:5).
Evangelical Protestants hold that we are saved by grace through faith, not by works (Ephesians 2:8-9). Baptism does not produce faith automatically; it signifies and confirms, for those who believe, what Christ has done. Paul could say that Christ did not send him to baptize but to preach the gospel (1 Corinthians 1:17), which shows that the rite serves the message. Yet baptism is not optional: it is a command of the Lord and the normal public confession of faith. Churches in other traditions, such as Lutherans, attribute a stronger efficacy to the rite; those differences exist even among Protestants.
Faithful Christians also differ on who should be baptized. Presbyterian, Reformed, Anglican, Lutheran and Methodist churches baptize the infants of believers, seeing baptism as the sign of the covenant that corresponds to circumcision (Colossians 2:11-12) and noting the promise to “your children” (Acts 2:39) and the baptisms of whole households. Baptist churches and many other evangelicals baptize only those who personally profess faith, noting that in the New Testament baptism regularly follows repentance and faith. On the mode, many practice immersion, which fits the meaning of the word and the image of burial (Romans 6:4), while others pour or sprinkle; an early Christian manual, the Didache (7), already allowed pouring when water was scarce. Both sides confess one Lord and salvation by grace alone.
5. Legacy and canonical references
The New Testament sees anticipations of baptism in Israel's history: the fathers were “baptized into Moses in the cloud and in the sea” (1 Corinthians 10:1-2), and Noah's family was brought safely through water (1 Peter 3:20-21). Believers are described as having their “bodies washed with pure water” (Hebrews 10:22), and Paul speaks of “the washing of regeneration and renewal of the Holy Spirit” (Titus 3:5), a verse many relate to baptism, although interpreters differ on whether it refers to the rite itself.
From the second century on, the church prepared converts carefully for baptism and confessed its faith in the triune formula of Matthew 28:19, which shaped the early creeds. The Reformation recovered the priority of the word and of faith; the sixteenth century Anabaptists and later the Baptists argued for believer's baptism, while the magisterial Reformers maintained infant baptism. The debate continues, but all these traditions recognize baptism as Christ's command and a sign of belonging to him.
6. Application for today
For the believer, baptism is a reminder of identity. Whatever our failures, we have been marked with the name of the Father, the Son and the Holy Spirit. Paul's conclusion to Romans 6 is practical: consider yourselves dead to sin and alive to God in Christ Jesus (Romans 6:11), and do not let sin reign in your mortal body.
If you trust in Christ and have not yet been baptized, the New Testament invites you to take that step of obedience without shame, publicly confessing the Lord who saved you. If you were baptized long ago, return to its meaning often: you were buried with Christ and raised to walk in newness of life. And where Christians disagree about baptism, the same Scripture calls us to hold our convictions with conscience and to love one another as members of one body, united by one Lord and one faith.