20. Fourth Woe—against those who confound the distinctions of right and wrong (compare Ro 1:28), "reprobate," Greek, "undiscriminating: the moral perception darkened."
bitter … sweet—sin is bitter (Jer 2:19; 4:18; Ac 8:23; Heb 12:15); though it seem sweet for a time (Pr 9:17, 18). Religion is sweet (Ps 119:103).