5 Bible Verses about Prayer Language

Likewise the Spirit also helps our infirmities. For we do not know what we should pray for as we ought, but the Spirit Himself makes intercession for us with groanings which cannot be uttered.

For he who speaks in a tongue does not speak to men but to God. For no one hears, but in spirit he speaks mysteries.

For if I pray in a tongue, my spirit prays, but my mind is unfruitful. What is it then? I will pray with the spirit, and I will also pray with the mind; I will sing with the spirit, and I will also sing with the mind.

praying always with all prayer and supplication in the Spirit, and watching to this very thing with all perseverance and supplication for all saints.

But you, beloved, building yourselves up in your most holy faith, praying in the Holy Spirit,