Holy Spirit in Christianity the Book of Acts. The Holy Spirit does not simply appear for the first time at Pentecost after the resurrection of Jesus, but is present in the Gospel of Luke (in 1–2) prior to the birth of Jesus. In , John the Baptist was said to be "filled with the Holy Spirit" prior to birth, and the Holy Spirit came upon the Virgin Mary in . In John the Baptist stated that Jesus baptized not with water but with the Holy Spirit; and the Holy Spirit descended on Jesus during his baptism in the Jordan River. In Jesus provided assurances
John the Baptist as a priest of the course of Abijah and Elizabeth as one of the daughters of Aaron, this would make John a descendant of Aaron on both his father's and mother's side. On the basis of this account, the Catholic as well as the Anglican and Lutheran liturgical calendars placed the feast of the Nativity of John the Baptist on June 24, six months before Christmas. Elizabeth is described as a "relative" of Mary, the mother of Jesus in . There is no mention of a family relationship between John and Jesus in the other Gospels, and Raymond E. Brown