Water baptism is clearly taught as a necessary step to salvation for the new covenant believer. It’s not just our opinion – it’s taught in the bible
Jesus taught in John 3:5 that “except a man be born of water and of the Spirit, he cannot enter the kingdom of God.”
At the time, the Holy Ghost had not yet been given (the Spirit Jesus was speaking about), so he was obviously speaking prophetically of when the Spirit would be given (i.e. when the N.T. church would start), which is what we find in the book of Acts, chapter 2.
On this particular day of Pentecost (a Jewish Feast), the “born of the Spirit” that Jesus spoke of in John 3:5 was fulfilled, when those in the upper room were filled with “power from on high”, and they spake with other tongues.
This was the giving of the Spirit, the Holy Ghost.
The apostle Peter, who previously had cowered while warming his hands at the fire of some of Jesus’ persecutors, now boldly proclaimed to a crowd of thousands, that they should “repent, be baptized in the name of Jesus Christ (born of water in John 3:5 – full immersion baptism) and receive the gift of the Holy Ghost (Acts 2:38).”
This was the fulfillment of John 3:5 and from that point onwards (Acts 2:38), that is how people were converted to Christianity, and that is still the method of entering the kingdom. We are still under the covenant of grace, ushered in by the events of Acts 2, the fulfillment of John 3:5.
No new method of salvation been given since. So, that is still the method in place, as established by God himself, when he “dwelt among us” (as the Messiah).
There is no other way to attain eternal life.
Baptism on it’s own won’t save you, but in combination with repentance and receiving the gift of the Holy Ghost, it will.
Here is John 3:5 again, the prophetic words of Jesus to Nicodemus, followed by Acts 2:38, the start of the church when the Holy Ghost was given. See the fulfillment of the words of Christ by matching the colored words.
“Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.” John 3:5
“Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and you shall receive the gift of the Holy Ghost.” Acts 2:38 (the apostle Peter)
Either Jesus and Peter were lying, or water baptism is a requirement of entering the kingdom of God, the body of Christ.