Romans 9:1

Ἀλήθειαν λέγω ἐν Χριστῷ, οὐ ψεύδομαι, συμμαρτυρούσης μοι τῆς συνειδήσεώς μου ἐν Πνεύματι ἁγίῳ,

Alētheian legō en Christō, oy pseydomai, symmartyroysēs moi tēs syneidēseōs moy en Pneymati agiō,

King James Version (KJV)

I say the truth in Christ, I lie not, my conscience also bearing me witness in the Holy Ghost,

Modern English

I speak the truth in Christ — I am not lying, my conscience confirms it through the Holy Spirit —