ἐν τῷ μεταξύ

From LSJ

εἰ μὴ ἦλθον καὶ ἐλάλησα αὐτοῖς, ἁμαρτίαν οὐκ εἶχον → if I had not come and spoken to them, they would not be guilty of sin

Source

Greek > English (Woodhouse)

in the interval, in the meanwhile