1 Corinthians 14:18-20

Young's Literal Translation

¹⁸ I give thanks to my God -- more than you all with tongues speaking --

¹⁹ but in an assembly I wish to speak five words through my understanding, that others also I may instruct, rather than myriads of words in an [unknown] tongue.

²⁰ Brethren, become not children in the understanding, but in the evil be ye babes, and in the understanding become ye perfect;