1 Corinthians 14:19 in the World English Bible
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.
Context
18 I thank my God, I speak with tongues more than ye all:
19 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.
20 Brethren, be not children in understanding: howbeit in malice be ye children, but in understanding be men.