Not in the lust of concupiscence, even as the Gentiles which know not God:
Berean Study Bible (BSB) - 1 Thessalonians 4:5 >not in lustful passion like the Gentiles who do not know God;
Textus Receptus (TR) - 1 Thessalonians 4:5 >μὴ ἐν πάθει ἐπιθυμίας, καθάπερ καὶ τὰ ἔθνη τὰ μὴ εἰδότα τὸν Θεόν·