'Mind' in the Bible

Now I exhort you, brethren, by the name of our Lord Jesus Christ, that you all agree and that there be no divisions among you, but that you be made complete in the same mind and in the same judgment.

For who has known the mind of the Lord, that he will instruct Him? But we have the mind of Christ.

For if I pray in a tongue, my spirit prays, but my mind is unfruitful.

What is the outcome then? I will pray with the spirit and I will pray with the mind also; I will sing with the spirit and I will sing with the mind also.

however, in the church I desire to speak five words with my mind so that I may instruct others also, rather than ten thousand words in a tongue.