The truthfulness which Jesus demands from his followers is the self-abnegation which does not hide sin. Nothing is then hidden, everything is brought forth to the light of day. In this question of truthfulness, what matters first and last is that a man's whole being should be exposed, his whole evil laid bare in the sight of God. But sinful men do not like this sort of truthfulness.

p. 138. - Discipleship (1937) - Truthfulness