Woe to them that call evil good, {a} and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!

(a) Who are not ashamed of sin, nor care for honesty but are grown to a desperate impiety.

Wesley's Notes

5:20 To them - That take away the difference between good and evil; that justify wicked men and things, and condemn piety, or righteous persons.

King James Translators' Notes

call...: Heb. say concerning evil, It is good, etc

Jamieson-Fausset-Brown Bible Commentary

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).

Matthew Henry's Concise Commentary

5:8-23 Here is a woe to those who set their hearts on the wealth of the world. Not that it is sinful for those who have a house and a field to purchase another; but the fault is, that they never know when they have enough. Covetousness is idolatry; and while many envy the prosperous, wretched man, the Lord denounces awful woes upon him. How applicable to many among us! God has many ways to empty the most populous cities. Those who set their hearts upon the world, will justly be disappointed. Here is woe to those who dote upon the pleasures and the delights of sense. The use of music is lawful; but when it draws away the heart from God, then it becomes a sin to us. God's judgments have seized them, but they will not disturb themselves in their pleasures. The judgments are declared. Let a man be ever so high, death will bring him low; ever so mean, death will bring him lower. The fruit of these judgments shall be, that God will be glorified as a God of power. Also, as a God that is holy; he shall be owned and declared to be so, in the righteous punishment of proud men. Those are in a woful condition who set up sin, and who exert themselves to gratify their base lusts. They are daring in sin, and walk after their own lusts; it is in scorn that they call God the Holy One of Israel. They confound and overthrow distinctions between good and evil. They prefer their own reasonings to Divine revelations; their own devices to the counsels and commands of God. They deem it prudent and politic to continue profitable sins, and to neglect self-denying duties. Also, how light soever men make of drunkenness, it is a sin which lays open to the wrath and curse of God. Their judges perverted justice. Every sin needs some other to conceal it.