προὔργου εἶναι

From LSJ

καὶ ἐχθροὶ τοῦ ἀνθρώπου οἱ οἰκιακοὶ αὐτοῦ → and a man's foes shall be they of his own household (Micah 7:6, Matthew 10:36)

Source

Greek > English (Woodhouse)

be expedient, be good, be convenient, have effect