1 Corinthians 14:14

Ἐὰν γὰρ προσεύχωμαι γλώσσῃ, τὸ πνεῦμά μου προσεύχεται, ὁ δὲ νοῦς μου ἄκαρπός ἐστιν.

Ean gar proseychōmai glōssē, to pneyma moy proseychetai, o de noys moy akarpos estin.

King James Version (KJV)

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

Modern English

For if I pray in a tongue, my spirit prays, but my mind is unfruitful.