The "mission" command of Jesus can be nut-shelled into just TWO words: "BAPTIZE them and TEACH them" (Joh.19:19-20)
There is nothing ambiguous about the Command. It is straightforward and down to the point. However, contention comes in with the UNDERSTANDING of this command, as can be witnessed throughout the spectrum of Christianity.
Some sprinkle, others immerse, some baptise children and adults, others adults only. There are effectively a legion of differences within the Christian Church about this extremely vital matter and every section offer their various reasons for their status quo.
This so unnecessary contention comes in and sow division, just because the second part of the Mission Command is not given the consideration it should have had: TEACH them! The question is: EXACTLY WHAT SHOULD BE TAUGHT? Pentecostalism? Catholicism? The different Reform doctrines?
That is surely NOT what Jesus or His Comforter had in mind. Baptism is NOT supposed to divide Christianity as it currently does, but is an intended SACRAMENT OF UNIFICATION, as Eph.4:5 so aptly says: "one Lord, one faith, one baptism"
There is a lot more to be said about baptism: that it is something much deeper and greater than a mere bodily action. Apostle Peter describes it like this: (1Pet.3:21) "...and this water SYMBOLIZES baptism that now saves you also—not the removal of dirt from the body but the pledge of a clear conscience toward God. It saves you by the resurrection of Jesus Christ..."
Apostle Peter thus clearly implies that BAPTISM DOES NOT SAVE PER SE, BUT BECAUSE OF THE RESURRECTION OF JESUS CHRIST!
To be baptised by the Holy Spirit certainly has nothing to do with physical water, but everything with immersing the believer in the Word of the Gospel...
I REPEAT: We should NOT be immersed into Religion, but into the GOSPEL.
As a spiritually baptized Apostle Paul declared: "I have been crucified with Christ and I no longer live, but Christ lives in me. The life I now live in the body, I live by faith in the Son of God, who loved me and gave himself for me." (Gal.2:20)