*** w63 11/15 pp. 688-689 pars. 3-4 Execution of Divine Judgment upon False Religion ***
Can there be false religion? It is not a form of religious persecution for anyone to say and to show that another religion is false. It is not religious persecution for an informed person to expose publicly a certain religion as being false, thus allowing persons to see the difference between false religion and true religion. But in order to make the exposure and show the wrong religions to be false, the true worshiper will have to use an authoritative means of judgment, a rule of measurement that cannot be proved faulty. To make a public exposure of false religion is certainly of more value than exposing a news report as being untrue; it is a public service instead of a religious persecution and it has to do with the eternal life and happiness of the public. Still it leaves the public free to choose.
Why should anyone practice a religion unless he is convinced that it is true and right? It is not egotistical for a worshiper to say and believe that his is the only true religion. However, he ought to be able to prove that his is the only one that is correct and that results in eternal blessings. Otherwise, his faith in his religion is foundationless and is mere credulity.