1 Corinthians 1:10; 1 Corinthians 2:16; 1 Corinthians 14:14; 1 Corinthians 14:15; 1 Corinthians 14:19

10 Now I beseech you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same thing, and that there be no divisions among you; but that ye be perfectly joined together in the same mind and in the same judgment.

16 For who hath known the mind of the Lord, that he may instruct him? But we have the mind of Christ.

14 For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful.

15 What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.

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.