Is Islam a harbinger of truth and peace as world leaders and Muslim apologists insist, or is Islam a “religion in crisis”? To answer this question correctly, we would do well to listen to the teachings of Jesus who rightly pointed out that “by their fruits you will know them” (Matt. 7:20). In other words, fruit is the telltale sign of something real, because fruit doesn’t lie. Instead, fruit (or the kind of it) exposes the tree. “For a good tree does not bear bad fruit, nor does a bad tree bear good fruit. For every tree is known by its own fruit. For men do not gather figs from thorns, nor do they gather grapes from a bramble bush” (Luke 6:43–44).
—from the Introduction