Because that which may be known of God is manifest in them; for God hath shewed [it] unto them.
Berean Study Bible (BSB) - Romans 1:19 >For what may be known about God is plain to them, because God has made it plain to them.
Textus Receptus (TR) - Romans 1:19 >διότι τὸ γνωστὸν τοῦ Θεοῦ φανερόν ἐστιν ἐν αὐτοῖς· ὁ γὰρ Θεὸς αὐτοῖς ἐφανέρωσε.