Pastor Bill Randles has written about this extensively.
Just because there are false prophets in the church does not negate Paul's invocation that “all should be ambitious to prophesy”...
The real issue is these false prophets and false preachers, of whom Christ warned us would be the horrific sign of his Second Coming, these apostates are operating under the supernatural influence of familiar spirits.
This is why there is some accuracy in what they preach or prophesy in the N.A.R.
And if you reject the “Gifts” of the Spirit as being for today, then you will not believe the “gift of discernment of spirits” is also for today, and you will not be able to discern that these people are operating out of demonic familiar spirits and other counterfeits... in the church.
How does Christ expect us to discern and judge “doctrines of demons” and “seducing spirits” that we are told will be rife in these latter days?
Jesus expects that we will be equipped by the Holy Spirit with the full flourishing of spiritual weapons... the gifts of prophecy, interpretation of tongues, words of knowledge, etc., etc.
We need to understand that, as Peter preached and the Prophet Joel prophesied, in these latter days, “I will pour out my Spirit on my manservants and maidservants” giving us dreams and visions so that we can function in this modern and increasingly evil world.
Jesus taught that what the forefathers of the faith, the old testament prophets longed to see but did not live to experience... Was that God's gift of the Holy Spirit, Jesus living in us, is a better thing than all under the Old Covenant had of God.
What we have after Pentecost and after the Holy Spirit fell in the upper room with the Disciples and Mary, is what we are to expect to have today in terms of the Gifts, but we are to apply and function in these gifts as Bereans, never going “beyond what is written” in terms of our experiences or doctrinal traditions. For He is the same yesterday, today and forever.
And what comes with a Biblical outpouring of the gifts of the spirit is an increasing responsibility of discernment of doctrine of demons and other seducing spirits of the heresies of the Mormons, the NAR, Freemasonic Ecumenicalism, Cessationist dead churches, etc., etc.
Praise God!
P.S. Just imagine if Joseph Smith put the teachings of the supernatural beings that spoke to him to the test of Scripture.
Then his creation would be called Berean; instead of Mormon.
Then the MMM would not have occurred.