Berean Standard Bible (BSB)
For if I pray in a tongue, my spirit prays, but my mind is unfruitful.
World English Bible (WEB)
For if I pray in another language, my spirit prays, but my understanding is unfruitful.
Strong's King James
For{G1063} if{G1437} I pray{G4336}{(G5741)} in an unknown tongue{G1100}, my{G3450} spirit{G4151} prayeth{G4336}{(G5736)}, but{G1161} my{G3450} understanding{G3563} is{G2076}{(G5748)} unfruitful{G175}.
The F.O.G *
(14) For if I pray in a tongue, my ruach-spirit prays but my mind is unfruitful.
The F.O.G Message *
Young's Literal Translation
for if I pray in an unknown tongue, my spirit doth pray, and my understanding is unfruitful.