when was the trinity first mentioned in the bible
Trinity While scripture does not contain the word Trinity,[16] an indication of three distinct persons can be found in 1 John 5:7 for the validity of which exist a controversy known as Johannine Comma. Early Christian belief in the deity of Jesus Christ existed since the first century in the writings of John the Apostle. (John 1:1) Jesus is also quoted as attesting to being equal with the Father. (John 8:58, 10:30)
Holy Spirit in Christianity The term Holy Spirit appears at least 90 times in the New Testament.[7] 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.[33] The participation of the Holy Spirit in the Trinity is suggested in Jesus' final post-Resurrection instruction to his disciples at the end of the Gospel of Matthew (28:19):[34] "Go ye therefore, and make disciples of all the nations, baptizing them into the name of the Father and of the Son and of the Holy Spirit".[14]