Because that for his name’s sake they went forth, taking nothing of the Gentiles.
Berean Study Bible (BSB) - 3 John 1:7 >For they went out on behalf of the Name, accepting nothing from the Gentiles.
Textus Receptus (TR) - 3 John 1:7 >Ὑπὲρ γὰρ τοῦ ὀνόματος αὐτοῦ ἐξῆλθον μηδὲν λαμβάνοντες ἀπὸ τῶν ἐθνῶν.