Common grace is a theological concept that has often been abused. Cornelius Van Til, who defended the concept against thinkers who wished to deny it entirely, warns against this abuse:
When men dream dreams of a paradise regained by means of common grace, they only manifest the ‘strong delusion’ that falls as punishment of God upon those that abuse his natural revelation.
Cornelius Van Til, “Nature and Scripture,” in The Infallible Word