μάχῃ κρατεῖν

From LSJ

οὐ λήψει τὸ ὄνομα Κυρίου τοῦ Θεοῦ σου ἐπὶ ματαίω → thou shalt not take the name of the Lord thy God in vain

Source

Greek > English (Woodhouse)

conquer in the field