Ἅγιος ὁ Θεός, Ἅγιος ἰσχυρός, Ἅγιος ἀθάνατος, ἐλέησον ἡμᾶς → holy God, holy Mighty, holy Immortal, have mercy on us
τὸ Ἄρειον πεδίον, or τὸ πεδίον τοῦ Ἄρεως.