5 Bible Verses about Prayer Language

In the same way the Spirit also takes hold with us in our weakness; for we know knot how to pray as we ought; but the Spirit himself intercedes for us with groanings which cannot be uttered.

For he who speaks in a "tongue" speaks not to man but to God, for no one understands him, but in the Spirit he utters secret truths.

For if I pray in an unknown tongue, my spirit prays, but my mind is barren. What then? I will pray with my spirit, and I will pray also with my mind. I will praise God with my spirit, but I will praise him with my mind, also.

Continue to pray at all times, with all prayer and supplication in the Spirit, and watching for it with all perseverance and supplication for all saints;

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