ἀνήκεστόν τι δρᾶν
From LSJ
οὕτως ἔσονται οἱ ἔσχατοι πρῶτοι καὶ οἱ πρῶτοι ἔσχατοι· πολλοὶ γάρ εἰσι κλητοί, ὀλίγοι δὲ ἐκλεκτοί → so the last shall be first and the first last for many be called but few chosen
Greek > English (Woodhouse)
take extreme measure, take extreme measures, take strong measures