5 Bible Verses about Prayer Language

Likewise the Spirit helps us in our weakness. For we do not know what to pray for as we ought, but the Spirit himself intercedes for us with groanings too deep for words.

For one who speaks in a tongue speaks not to men but to God; for no one understands him, but he utters mysteries in the Spirit.

For if I pray in a tongue, my spirit prays but my mind is unfruitful. What am I to do? I will pray with my spirit, but I will pray with my mind also; I will sing praise with my spirit, but I will sing with my mind also.

praying at all times in the Spirit, with all prayer and supplication. To that end keep alert with all perseverance, making supplication for all the saints,

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