Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature.
1 Corinthians 14:20
Surrounding context
14:19 yet in the church I would rather speak five words with my understanding, that I may teach others also, than ten thousand words in a tongue.
14:20 Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature.
14:21 In the law it is written: "With men of other tongues and other lips I will speak to this people; And yet, for all that, they will not hear Me," says the Lord.