So then tongues are for a sign, not for believers (pisteuousin | πιστεύουσιν | pres act ptcp dat pl masc) but for unbelievers, while prophecy is not for unbelievers but for believers (pisteuousin | πιστεύουσιν | pres act ptcp dat pl masc).
Reference
1 Corinthians 14:22
Sequence
178