1 Corinthians 14:19 in the King James Version
Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also, than ten thousand words in an unknown tongue.
Context
18 I thank my God, I speak with other languages more than you all.
19 However, in the assembly I would rather speak five words with my understanding, that I might instruct others also, than ten thousand words in another language.
20 Brothers, don’t be children in thoughts, yet in malice be babies, but in thoughts be mature.