§ 02 · King James Bible
1 Corinthians 14:22
Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe.
Simple English
Tongues are a sign for those who don't believe, not for those who do. Prophecy helps those who believe, not those who don't.
* Work in progress - there may be occasional inaccuracies