This document discusses the biblical concept of being "born again" through three key aspects:
1) Believing in Jesus Christ and repenting of sins is necessary for salvation.
2) Baptism by immersion in water is described as the "birth of water" and is part of being born again.
3) Receiving the Holy Spirit is the "birth of the Spirit" and is evidenced by speaking in other tongues, as occurred at Pentecost. The document uses passages from John, Acts and other books to support these points.