Isaiah 5:20 is a warning against moral confusion. It pronounces a “woe,” a prophetic curse, on people who redefine right and wrong, calling evil good and good evil, and who reverse the basic difference between light and darkness, sweet and bitter. Isaiah, the eighth-century prophet to Judah, speaks these words to the leaders and people of Jerusalem who had lost the ability to tell God’s standards from their own preferences.
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 begins with “Woe,” a cry of grief and judgment rather than a casual complaint. The people described are not confused by accident. They deliberately flip the labels: what harms others gets called acceptable, and what is faithful and decent gets mocked or called foolish. The image of putting “darkness for light” and “bitter for sweet” points to the same problem from the senses. Just as you would never mistake night for day or poison for honey, a healthy community should be able to tell right from wrong.
The verse does not describe honest mistakes or the sincere difficulty of hard moral questions. It targets a settled habit of twisting words so that sin looks respectable and righteousness looks like a joke. It also does not promise that the wicked will always be obvious to everyone. It names a pattern and declares that God takes it seriously. Read this way, the verse calls you to examine whether your own language about good and evil has been shaped by what you want rather than by what is true.
The Context of Isaiah 5:20
Isaiah 5 opens with a song about a vineyard that yields wild grapes despite all the care lavished on it. The vineyard stands for Israel and Judah, and God’s disappointment is the heartbeat of the chapter. Verses 18 through 23 form a series of woes against different kinds of wrongdoing: those who pull sin along with ropes of falsehood, those who mock God’s timing, those who trust their own cleverness, those who party while ignoring the Lord’s work, and judges who take bribes. Verse 20 sits in the middle of this list as the moral center of the accusations.
Seeing the surrounding verses changes how the warning lands. The problem described is not only private confusion but public corruption, where those with power and influence use their words to excuse injustice. The woes that follow, against the wise in their own eyes and the corrupt judges, show that twisted speech about good and evil leads directly to unjust courts and wasted lives. The verse therefore speaks to leaders, teachers, and anyone whose opinions shape how others see the world.
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.
(WEB)
Paul shows the positive side of Isaiah’s warning. He calls believers to genuine love and to hate what is evil while holding fast to what is good. The verse pairs honest discernment with affection, reminding you that clear moral sight is meant to serve real care for others.
Isaiah 1:18
“Come now, and let us reason together,” says the LORD: “Though your sins be as scarlet, they shall be as white as snow. Though they be red like crimson, they shall be as wool.
(WEB)
This verse, from earlier in the same book, shows God inviting the people to reason honestly about their sin. Instead of twisting the truth, they are called to come and reason together, and God promises that even scarlet sins can be made white as snow.
A Short Prayer From Isaiah 5:20
Lord, you are the one who truly defines what is good and what is evil, and you are the light that no darkness can overcome. Forgive me for the times I have excused what I know is wrong or mocked what is right because it was inconvenient for me. Open my eyes to see my own heart clearly, and give me a love for truth that is willing to call sin sin and goodness goodness. Help me to speak with honesty and kindness, so that my words bring light and not confusion to those around me. Amen.
