Besides acting as a prayer language, tongues also function as the "gift of tongues". Not all Spirit-filled believers possess the gift of tongues. Its purpose is for gifted persons to publicly "speak with God in praise, to pray or sing in the Spirit, or to speak forth in the congregation". There is a division among Pentecostals on the relationship between the gifts of tongues and prophecy. One school of thought believes that the gift of tongues is always directed from man to God, in which case it is always prayer or praise spoken to God but in the hearing of the entire congregation for encouragement and consolation. Another school of thought believes that the gift of tongues can be prophetic, in which case the believer delivers a "message in tongues"—a prophetic utterance given under the influence of the Holy Spirit—to a congregation.