μετ' εὐνοίας δουλεύοντες ὡς τῷ Κυρίῳ καὶ οὐκ ἀνθρώποις·
With good will doing service, as to the Lord, and not to men:
Sirvan de buena gana, como si sirvieran al Señor y no a los hombres,