The definition of praying in the Spirit
I Corinthians14 For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful. 15 ¶ 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.
A weapon of our spiritual waerfare
Eph. 6:18 Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints; c