As far as the Berean’s are concerned, nowhere do the scriptures indicate that that was all the Berean’s did to come to a knowledge of the truth or all that they had to do.
As far as you receiving an answer from the Lord that Mormonism is Satanic, if you received that answer, surely you could receive answer as to what church is his true church. What was that answer?
I am a member of the body of Christ - I know this through the scriptures with assurance!