A.T. Robertson Commentary Hebrews 13:18

"Pray for us: for we are persuaded that we have a good conscience, desiring to live honorably in all things." — Hebrews 13:18 (ASV)

Honestly (καλως). Nobly, honourably. Apparently the writer is conscious that unworthy motives have been attributed to him. Cf. Paul in 1 Thessalonians 2:18; 2 Corinthians 1:11f.,17f.