Baptism was viewed by the early Christians as more than just an outward display of inward commitment, but as a covenant. That's why John 3:3-7 records:
3 Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.
4 Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother’s womb, and be born?
5 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.
6 That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
7 Marvel not that I said unto thee, Ye must be born again.
Baptism is required for all men (and women) who gain eternal life. This is what was meant as being born of the water. Being born of the Spirit is receiving the Holy Spirit by the laying on of hands. The JWs believe that all who are baptized receive the power to become ministers of God with the authority to preach, teach, expound, exhort and baptize. The strange thing is, men cannot baptize their own children in the Organization, though I know of nothing that specifically prohibits it. The Organization won't recognize it as official unless it has one of its own elders perform it and until the baptizee answers a pledge of loyalty to the Society.
The Bible never specifically states what will happen to those who never have the opportunity of being baptized. If someone must have these to gain eternal life, that leaves a lot of people seemingly hanging. The Bible also never answers the questions of how to baptize, who may baptize and what one must say while performing it. When ancient ordinances were performed in the Old Testament, they required that the priests do it. We also know the first century Christian Church had priests, deacons, teachers, bishops, seventy and elders. Did these positions require ordination and instruction? We don't know because the Bible was never intended to be a church manual. We know that Jesus ordained his apostles, but beyond that, nothing.