Praying in Tongues Renews Your Mind. “I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God” (Romans 12:1-2).
“If so be that ye have heard him, and have been taught by him, as the truth is in Jesus: That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts; And be renewed in the spirit of your mind; And that ye put on the new man, which after God is created in righteousness and true holiness” (Ephesians 4:21-24).
For as he thinketh in his heart (or mind), so is he (Proverbs 23:7).
“Let this mind be in you, which was also in Christ Jesus: Who, being in the form of God, thought it not robbery to be equal with God: But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross” (Philippians 2:5-8).
Simply stated, renewing you mind is changing your “Mindset” from the natural disposition of that of the fallen man to that of the Supernaturally, Holy Spirit-taught individual. It could be said that Paul is pleading with believers to yield to the Holy Spirit, turn away from the world and be renewed in the spirit of the mind in the similitude of God.
The spirit of man just like the Spirit of God does not work on its own accord but processes instructions or information that it is charged with from the soul, be it worldly or Godly. Serving up the Word of God to the human spirit produces the “mind which is also in Christ Jesus.” Praying in Tongues (as it is the language of the spirit) additionally aids in the renewal of the mind. “Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come” (John 16:13).