 God gave his people this helpful logic-based warning through the pen of the prophet Isaiah. Woe unto them that call evil good and good evil, that put darkness for light and light for darkness, that put bitter for sweet and sweet for bitter, Isaiah 5 and verse 20. Isaiah's country counterpart Micah said, He has showed thee, O man, what is good and what doth the Lord require of thee, but to do justly and to love mercy and to walk humbly with thy God, Micah 6 verse 8. God's light, his word, eliminates confusion and shows us the right way.