I Corinthians 14:18-21

I thank my God I speak with tongues more than you all; 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. Brethren, do not be children in understanding; however, in malice be babes, but in understanding be mature. 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.