There are two aspects in the manifestation of tongues: first, the sign of tongues in Acts 2, 10, 19 (and probably in Ch 8); second, the gift of tongues in the early apostolic church. The gift under the second aspect evidently was not permanent (1 Cor 13:9-13), nor given to every believer. It required the concomitant gift of interpretation (1 Cor 12:10; 14:1-40). This sign gift with interpretation was meant to instruct the church before the completed NT Scriptures were given. Under the first aspect tongues were a means by which the Holy Spirit witnessed to Israel on the day of Pentecost (2:4-13).  They were a sign of the…