A.T. Robertson Commentary Luke 17:9

"Doth he thank the servant because he did the things that were commanded?" — Luke 17:9 (ASV)

Does he thank? (μη εχε χαριν; ). Μη expects the negative answer. Εχω χαριν, to have gratitude toward one, is an old Greek idiom (1 Timothy 1:12; 2 Timothy 1:3; Hebrews 12:28).