'Mind' in the Bible

Now I beseech you, brethren, through 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 perfected together in the same mind and in the same judgment.

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

Brethren, be not children in mind: yet in malice be ye babes, but in mind be men.