I think there is a distinct difference between presumption and deception.
Those who presume that “God spoke to them” (when He didn’t) are in error.
Those who TRULY use God’s name in vain are ones who are out and out LYING in order to gain power or wealth (personal gain)
I agree that TOO MANY people are saying God spoke to them when He clearly did not... but they really do believe God was talking. Unfortunately, It does far more damage than it does good, especially when the message itself does not line up with scripture.
At the same time, I do believe there are many who HAVE heard from the Lord... and God has instructed them to share the message with others. It requires discernment to be able to tell the difference, and that can only come from the Holy Spirit.
RE: Those who presume that “God spoke to them” (when He didn’t) are in error.
So, how do we know that someone is speaking in error or not?
What guidelines do we have?