As we look at the records of the early Church, we find that people were baptized as soon as they heard and responded to the gospel message. The only requirement was a true repentance and a living faith in Jesus Christ, the Son of God. As soon as repentance and faith were evident, people were instructed as to the meaning and necessity of water baptism. They did not argue about it, but found water and were baptized. It was that simple.  

Since water baptism is a meaningful response in obedience to the gospel, it must be done with understanding. We find no Scriptural record of the baptism of infants. Baptism was reserved for adults who confessed Jesus as Lord.  

And as they went on their way, they came unto a certain water: and the eunuch said, See, here is water; what doth hinder me to be baptized? And Philip said, If thou believest with all thine heart, thou mayest. And he answered and said, I believe that Jesus Christ is the Son of God (Acts 8:36, 37).