<P> The Holy Spirit is mentioned by all three authors of the synoptic Gospels . Most of the references are by the author of the Gospel of Luke; this emphasis is continued by the same author in the Book of Acts . </P> <P> 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 Luke 1: 15, 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 Luke 1: 35 . In Luke 3: 16 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 Luke 11: 13 Jesus provided assurances that God the Father would "give the Holy Spirit to those who ask him". </P> <P> Mark 13: 11 specifically refers to the power of the Holy Spirit to act and speak through the disciples of Jesus in time of need: "be not anxious beforehand what ye shall speak: but whatsoever shall be given you in that hour, that speak ye; for it is not ye that speak, but the Holy Spirit ." Matthew 10: 20 refers to the same act of speaking through the disciples, but uses the term "Spirit of your Father". </P> <P> The sacredness of the Holy Spirit to Christians is affirmed in all three Synoptic Gospels (Matthew 12: 30--32, Mark 3: 28--30 and Luke 12: 8--10) which proclaim that blasphemy against the Holy Spirit is the unforgivable sin . </P>

What are other names for the holy spirit