When you go about speaking incomprehensible words, how do you tell it is the will of the Father if you don't understand a word you are saying?
2 Thess 2:
9The coming of the lawless one will be in accordance with how Satan works. He will use
all sorts of displays of power through signs and wonders that serve the lie, 10and all the ways that wickedness deceives those who are perishing. They perish because they refused to love the truth and so be saved.
Rev 13:
11Then I saw a second beast, coming out of the earth. It had two horns like a lamb, but it spoke like a dragon.
12It exercised all the authority of the first beast on its behalf, and made the earth and its inhabitants worship the first beast, whose fatal wound had been healed.
13And it performed great signs, even causing fire to come down from heaven to the earth in full view of the people.
14Because of the signs it was given power to perform on behalf of the first beast, it deceived the inhabitants of the earth. It ordered them to set up an image in honor of the beast who was wounded by the sword and yet lived.
These verses are talking about the same thing as Matt 7. Rev 13 even goes further to say that the beast has two horns like that of a lamb- a clear indication that all these things happen in the church through the so called ministers/pastors.