1 Corinthians 14
20 Ref My brothers, do not be children in mind: in evil be as little children, but in mind be of full growth.
21 Ref In the law it is said, By men of other tongues and by strange lips will my words come to this people; and not even so will they give ear to me, says the Lord.
22 Ref For this reason tongues are for a sign, not to those who have faith, but to those who have not: but the prophet's word is for those who have faith, and not for the rest who have not.