5 Bible Verses about Prayer Language

Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered.

For he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries.

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

Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;

But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,