How can you tell which is the Word of God and which is an imposter?
If you are talking about how I know it's
the voice of the Living God, then this is what I've discovered.
If the Word of God comes in a dream ... then
it will be a short and to the point dream ... whose details cannot be quickly or easily forgotten. Usually the interpretation of the dream comes through personal contemplation and usually one finds that the interpretation fits the truth in scripture... sometime revelation come within the natural world when it comes true ... or revealed by a pastor, who interprets your dream during his Sunday sermon... etc.
If the Word of God comes to you in a still small voice ... it's harder ... but I've found
it comes true ... and that is the evidence. For example: I heard a voice within my mind warning that I was going to be in a car wreck. I listened, just in case, and tried to do all the things I could think of to get home safely ... but the wreck happen anyway right at my house! Since then
I've decided to PRAY about warnings ... something I did not think of at the time.
The neatest thing is when I've had a dream and the next morning on awaking the interpretation comes as a still small voice or as a sudden flood of scriptures that all fall into logical place that increases my understanding of a matter.
Once I prayed for help in a situation that was concerning me. The answer came the next morning in a short simple statement, and did not seem, at first, to be an answer to my specific prayer... but I decided to follow the suggestion and that prevented problems I may have had at work ... and, in fact, listening and following brought praise from my employer and victory in a situation. This proved to me that God knows my needs better than I do!
If it is an audible voice ... well, that was very confusing to me ... for years ago I only heard my name called twice on two occasions. No, other comments or anything were made then ... nor so far.
When reading the written word I find that, if God is showing me something, which He wants me to understand ... then He puts the scriptures together for me... then they help me understand other parts of the scripture. I also do not forget what I have read and can usually remember where I read it. This is happening to a person that has trouble quickly remembering the names of even my friends at times ... and who cannot remember from one Christmas to the next what gifts I got. IT'S A MIRACLE!