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.

Therefore other languages are for a sign, not to those who believe, but to the unbelieving; but prophesying is for a sign, not to the unbelieving, but to those who believe.

Wherefore tongues are for a sign, not to them that believe, but to the unbelieving: but prophesying `is for a sign', not to the unbelieving, but to them that believe.

so that the tongues are for a sign, not to the believing, but to the unbelieving; and the prophesy `is' not for the unbelieving, but for the believing,

Tongues, then, are a sign, not for believers, but for unbelievers. Prophecy, however, is for believers, not for unbelievers.