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

For if I make use of tongues in my prayers, my spirit makes the prayer, but not my mind.

διοτι εαν προσευχωμαι με γλωσσαν αγνωριστον, το πνευμα μου προσευχεται, αλλ' ο νους μου ειναι ακαρποφορητος.

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