Κύριε, σῶσον τὸν δοῦλον σου κτλ. → Lord, save your slave ... (mosaic inscription from 4th cent. church in the Negev)
stubbornly: Ar. and P. αὐθάδως, P. σκληρῶς.
mercilessly: V. νηλεῶς, ἀνοίκτως, ἀναλγήτως, P. σχετλίως, P. and V. πικρῶς.