εὖ δρᾶν
From LSJ
νίψον ἀνομήματα, μὴ μόναν ὄψιν → wash the sins, not only the face | wash my transgressions, not only my face
Greek > English (Woodhouse)
benefit, do a favor, do a favour, do a good turn, do one a good turn, do service to, treat well, use well
