Galatians 5:1-4
Stand fast therefore in the liberty wherewith Christ hath made us free, and be not entangled again with the yoke of bondage.
Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing.
For I testify again to every man that is circumcised, that he is a debtor to do the whole law.
Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.
We will fall from the understanding of the grace that is in Christ, and succumb to the doctrines and theories that are dictated by human conception if we seek justification by our own works. The concision was from those who taught circumcision was necessary for salvation. Circumcision is a work of the flesh required by the Old Testament Law, and by the way so is water baptism, which is a carryover from part of the Levitical Law.
There are many examples of people in the Old Testament who would wash themselves with water as a final step to being clean. Water baptism was an outward sign of washing, and then you would be clean to God. Baptism in water, and the need to be circumcised passed away with the coming of Pentecost, as did the other Levitical Laws. To be led by the spirit is to not be under the yoke of bondage with the extreme of legalism, seeking the works of the flesh from the old covenant concerning the past Law administration that was written to Israel.
It's clear from the gospels that water baptism had to do with the kingdom, which was ministered by John who was known as the Baptizer, and not a minister for the Church of God. John who was a prophet functioning under the old covenant was appointed by God to prepare and confirm the promises made to Israel. His message was to tell those who lived under the old covenant that the king had come and “the kingdom of heaven is at hand.”
He used water as a sign to baptize those who believed the promised Messiah would be coming in just a matter of months and to illustrate that he would be the Christ, who would baptize them not with material water, but with holy spirit, which is “power from on high.” From the habit of tradition, and only for a short period of time, a small handful of people were baptized with water into the New Testament, but never again afterwards.
In the epistles written just a little bit past the beginning of the New Testament is where we read the only time water baptism is mentioned is to note there is no more need for it, and that we are now to be baptized with holy spirit. And this is why in Acts 2:38, Peter commands “Repent, and be baptized every one of you in the name of Jesus Christ.” In Acts 8:16, Peter and John “baptized in the name of the Lord Jesus.” In Acts 10:48, Peter “commanded them to be baptized in the name of the Lord.” In Romans 6:3, it declares “that so many of us as were baptized into Jesus Christ.”
There is not one exception to this practice where we see water baptism, which belonged to the time period when Christ walked the earth, being used once the Church of God had become established. To suggest water baptism has anything to do with the only begotten resurrected Son of God, who is functioning within the New Testament as the head of the body of Christ, has led to nothing but confusion and has provided a bomb that has blown the local churches into pieces.