Why do we need the power of discernment? Discernment is needed in many fields in this world. In the world, fakes are as prevalent as real ones. Look at the ruins, How hard are people? Still, this is a bit better. Because it is only a case of mental and material damage. This also applies to the religious field. False religion and similar religion is so deadly because it's spiritual, Where will we live forever, not only in this world, but after death? We have to be discerning because it will last forever.