Acts 18:8 Crispus, the ruler of the synagogue, believed in the Lord, together with all his household; and many of the Corinthians hearing Paul believed and were baptized.
Repentance and baptism once again.
Acts 19:1-6 While Apollos was at Corinth, Paul passed through the upper country and came to Ephesus. There he found some disciples. 2 And he said to them, “Did you receive the Holy Spirit when you believed?” And they said, “No, we have never even heard that there is a Holy Spirit.” 3 And he said, “Into what then were you baptized?” They said, “Into John’s baptism.” 4 And Paul said, “John baptized with the baptism of repentance, telling the people to believe in the one who was to come after him, that is, Jesus.” 5 On hearing this, they were baptized in the name of the Lord Jesus. 6 And when Paul had laid his hands upon them, the Holy Spirit came on them; and they spoke with tongues and prophesied. This shows the difference between the baptisms of John & Jesus. Again, repent and be baptized.
Acts 22:16 And now why do you wait? Rise and be baptized, and wash away your sins, calling on his name.’ Repentance and baptism again.
Rom 6:3-9 Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death? 4 We were buried therefore with him by baptism into death, so that as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life. 5 For if we have been united with him in a death like his, we shall certainly be united with him in a resurrection like his. 6 We know that our old self was crucified with him so that the sinful body might be destroyed, and we might no longer be enslaved to sin. 7 For he who has died is freed from sin. 8 But if we have died with Christ, we believe that we shall also live with him. 9 For we know that Christ being raised from the dead will never die again; death no longer has dominion over him. Reflects the power of baptism in which we die and are reborn in Christ.
1 Cor 1:13c Or were you baptized in the name of Paul? *This statement takes for granted that all in the Body of Christ are baptized.
*1 Cor 10:1-3 I want you to know, brethren, that our fathers were all under the cloud, and all passed through the sea, 2 and all were baptized into Moses in the cloud and in the sea, 3 and all ate the same supernatural food 4 and all drank the same supernatural drink. For they drank from the supernatural Rock which followed them, and the Rock was Christ. Baptism foreshadowed in the OT.
1 Cor 12:13 For by one Spirit we were all baptized into one body – Jews or Greeks, slaves or free – and all were made to drink of one Spirit. Paul writes the way we became one body (that of Christ) is through baptism.
Gal 3:27 For as many of you as were baptized into Christ have put on Christ. *In order to be a part of Christ, one must be baptized.
*Eph 4:4-6 There is one body and one Spirit, just as you were called to the one hope that belongs to your call, 5 one Lord, one faith, one baptism, 6 one God and Father of us all, who is above all and through all and in all. There is one baptism and this baptism is required, else why does Paul list this requirement here? This is validated by Gal 3:27 above.
Col 2:12 and you were buried with him in baptism, in which you were also raised with him through faith in the working of God, who raised him from the dead. In baptism we are buried and raised with Christ to new life.
Heb 6:1-2 Therefore let us leave the elementary doctrine of Christ and go on to maturity, not laying again a foundation of repentance from dead works and of faith toward God, 2 with instruction about ablutions, the laying on of hands, the resurrection of the dead, and eternal judgment. The elementary doctrine of Christ includes baptism which is a washing.
1 Pet 3:18-22 For Christ also died for sins once for all, the righteous for the unrighteous, that he might bring us to God, being put to death in the flesh but made alive in the spirit; 19 in which he went and preached to the spirits in prison, 20 who formerly did not obey, when God’s patience waited in the days of Noah, during the building of the ark, in which a few, that is, eight persons, were saved through water. 21 Baptism, which corresponds to this, now saves you, not as a removal of dirt from the body but as an appeal to God for a clear conscience, through the resurrection of Jesus Christ, 22 who has gone into heaven and is at the right hand of God, with angels, authorities, and powers subject to him. *Noah was saved as through water is a foreshadowing of Peter’s statement that we are saved by baptism through cleansing us from all unrighteousness.
*Eph 5:25-27 Husbands, love your wives, as Christ loved the church and gave himself up for her, 26 that he might sanctify her, having cleansed her by the washing of water with the word, 27 that he might present the church to himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish. The washing is an image of baptism and this statement shows that baptism makes the church “without spot or wrinkle or any such thing… holy and without blemish”. This shows that baptism washes one from sin making them pure.
Titus 3:4-7 but when the goodness and loving kindness of God our Savior appeared, 5 he saved us, not because of deeds done by us in righteousness, but in virtue of his own mercy, by the washing of regeneration and renewal in the Holy Spirit, 6 which he poured out upon us richly through Jesus Christ our Savior, 7 so that we might be justified by his grace and become heirs in hope of eternal life. God saves us through baptism, identified here as the washing of regeneration and renewal in the Holy Spirit through Jesus. We are justified by grace.
There is more than that, but I am out of time. Do not disbelieve, but believe.