Isaiah 5:20 is a warning against moral confusion. It pronounces judgment on people who redefine right and wrong so that harmful things look acceptable and godly things look like something to mock or avoid. The prophet Isaiah spoke these words to the people of Judah in Jerusalem during the eighth century BC, addressing a society that had grown comfortable with injustice and had lost its sense of what God calls good.
Woe to those who call evil good, and good evil; who put darkness for light, and light for darkness; who put bitter for sweet, and sweet for bitter!
Isaiah 5:20 (WEB)
What Isaiah 5:20 Means
The verse uses four paired images to make one point. Calling evil good and good evil describes a change in moral language: what God condemns is praised, and what God honors is dismissed. The pairs of darkness and light, and bitter and sweet, show the same reversal in everyday terms. Darkness hides and misleads, light reveals and guides, and a bitter taste is something people avoid while sweetness is something they seek. Isaiah says that when people swap these, they lose the ability to see their own lives clearly.
The verse does not describe honest mistakes or the struggle to understand a hard moral question. It targets people who knowingly twist the truth to suit their appetites and then defend that twisting. It also does not promise that God will instantly punish every such person. Its function is to name the danger and declare that the one who reverses God’s standards stands under God’s judgment.
The Context of Isaiah 5:20
The book of Isaiah is traditionally attributed to the prophet Isaiah, who ministered in Judah during the reigns of several kings, roughly from about 740 to 700 BC. Chapter 5 belongs to a section of oracles that critique the nation’s social and religious life. Earlier in the chapter, Isaiah describes a vineyard that God planted and cared for, which yielded only wild grapes. The vineyard stands for Israel, and the failure of its harvest stands for a failure of justice and righteousness.
The surrounding verses sharpen the picture. Verses 18 and 19 mock people who openly dare God to act, and verses 21 to 23 condemn those who think themselves wise, who drink to excess, and who take bribes to acquit the guilty while denying justice to the innocent. Verse 20 sits at the center of this list of woes, so it reads less like an isolated proverb and more like a summary of the moral collapse Isaiah sees around him. The verse is aimed at a whole culture that has lost its moral bearings.
Key Phrases in Isaiah 5:20
Romans 12:9
Let love be without hypocrisy. Abhor that which is evil. Cling to that which is good.
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This verse tells believers to let love be genuine and to hate what is evil while holding fast to what is good. It answers the confusion Isaiah describes by calling Christians to a love that does not pretend, and to a clear moral stance that refuses to bless what God condemns.
Philippians 4:8
Finally, brothers, whatever things are true, whatever things are honorable, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report; if there is any virtue, and if there is any praise, think about these things.
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Paul lists the things worthy of a believer’s thoughts: what is true, honorable, just, pure, lovely, and commendable. This passage offers a positive counterpart to Isaiah’s warning, showing that a healthy moral mind keeps its attention on what truly deserves to be called good.
A Short Prayer From Isaiah 5:20
Lord, you are the one who defines what is good and true, and you see clearly even when we are tempted to see poorly. Forgive us for the times we have called wrong things right because they served us, or dismissed what you call good because it required something from us. Give us courage to speak the truth plainly, and wisdom to recognize the difference between what pleases us and what heals us. Let our words and choices bring light instead of confusion, and help us to love what you love. Amen.
