What is the baptism of the Holy Spirit?
The baptism of the Holy Spirit is the work by which the risen Christ unites a believer to himself and immerses them in his Spirit. Most Christians hold that it happens at conversion ("by one Spirit we were all baptized into one body" — 1 Cor 12:13); some traditions see it as a distinct later experience.
John the Baptist said the coming Messiah would "baptize with the Holy Spirit." Acts 2 fulfills that promise at Pentecost.
Paul connects Spirit-baptism with union with Christ: every believer is brought into Christ’s body by the Spirit.
Whatever the framework, the gift is the same: the Holy Spirit indwells the believer for life, witness, and assurance.
Original BibleDawn answer · reviewed 2026-06. Drafted with AI assistance and reviewed for accuracy.