Our postmodern times are marked by such an extreme emphasis on tolerance and pluralism that anyone who takes a stand against false teaching is labelled “bigoted” and “judgmental.” The proliferation of religious error should not surprise us, because the Adversary fuels its fire. Paul clearly warned that “even Satan disguises himself as an angel of light” (2 Corinthians 11:14).

Therefore, it's easy to see how up-to-date John's command is today: “test the spirits” (1 John 4:1).