"God is spirit, and those who worship Him must worship in spirit and truth" (John 4:24).That frequently quoted verse has become a popular proof text for charismatic doctrine. In fact, a recent article in Charisma magazine used it as biblical support for speaking in tongues as a form of "spirit-to-Spirit communication with God."But do Jesus' words in John 4:24 really affirm sign gifts as necessary parts of our worship? . . .