Sometimes the best way to love your neighbor is to challenge a false belief that is holding him in confusion, discouragement, or some worse state of spiritual bondage. The idea that it's unloving to defend truth or confront lies is one of the arrogant opinions of this postmodern age that needs to be torn down (2 Cor. 10:5). Authentic love "rejoices with the truth" (1 Cor. 13:6).