Most Bible students are aware of a seeming contradiction in the Bible, one that is pretty easily resolved. The verses (ESV) are Proverbs 26:4-5,
Answer not a fool according to his folly, lest you be like him yourself. Answer a fool according to his folly, lest he be wise in his own eyes.
Since they are placed one after another, it is pretty obvious that they are to be examined together. This leads us to two conclusions: sometimes answering a fool is a no-win situation, it really doesn’t matter which approach you take. And, sometimes, one approach might serve you better than the other — but neither approach is really good (even if one might be the lesser of evils).
There is another apparent contradiction we must address that is a bit more formidable, however. It is about using the word “fool.”
The word “fool” is used frequently in the Book of Proverbs (71), 136 times in the Old Testament and 39 in the New (these statistics refer to the ESV translation). This creates no problem until we come across a passage that seems to condemn us for using the “fool” label.
Matthew 5:21-22 is that passage. The Holman Christian Standard translates this best:
You have heard that it was said to our ancestors, “Do not murder, and whoever murders will be subject to judgment.” But I tell you, everyone who is angry with his brother will be subject to judgment. And whoever says to his brother, “Fool!” will be subject to the Sanhedrin. But whoever says, “You moron!” will be subject to hellfire.