Worldliness is rarely even mentioned today, much less identified for what it is. The world itself is beginning to sound quaint. Worldliness is the sin of allowing one’s appetites, ambitions, or conduct to be fashioned according to earthly values. . . . Yet today we have the extraordinary spectacle of church programs designed explicitly to cater to fleshly desire, sensual appetites, and human pride–“the lust of the flesh and the lust of the eyes and the boastful pride of life.”

– John MacArthur