Watch ye and pray, lest ye enter into temptation. The spirit truly is ready, but the flesh is weak. Mark 14:38 KJV
The born-again, spirit-filled, covenant man has a way out of temptation, insecurity, and weakness. He has been given the ability to tap into supernatural power and strengthen his inner man.
But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost, Jude 1:20 KJV
According to scripture, praying in tongues builds up and undergirds the whole man; spirit, soul, and body.
He that speaketh in an unknown tongue edifieth himself; but he that prophesieth edifieth the church. 1 Corinthians 14:4 KJV
It speaks mysteries to God and brings prophetic direction from the heart of God. It brings revelation from the Word of God that applies to every individual circumstance or situation.