Any Christian worth listening to loves the cross and is loath to see it robbed of its glory. To ridicule what the cross accomplished is to make war with the heart of the gospel and the comfort of God’s people.
J. Gresham Machen understood this well:
They [liberal preachers] speak with disgust of those who believe ‘that the blood of our Lord, shed in a substitutionary death, placates an alienated Deity and makes possible welcome for the returning sinner.’ Against the doctrine of the Cross they use every weapon of caricature and vilification. Thus they pour out their scorn upon a thing so holy and so precious that in the presence of it the Christian heart melts in gratitude too deep for words. It never seems to occur to modern liberals that in deriding the Christian doctrine of the cross, they are trampling upon human hearts. (Christianity and Liberalism, 120 [pagination may differ])
No doubt, some Christians get worked up over the smallest controversies, making a forest fire out of a Yankee Candle. But there is an opposite danger–and that is to be so calm, so middle-of-the-road, so above-the-fray that you no longer feel the danger of false doctrine. You always sound analytical, never alarmed. Always crying for much-neglected conversation, never crying over a much-maligned cross. There is something worse than hurting feelings, and that is trampling upon human hearts.