Lots of good thoughts here, but I'll point this out:

Without the Scriptures, how do you sort out those three voices you hear in your thought stream?

Then Jesus was led by the Spirit into the wilderness to be tempted by the devil. After fasting forty days and forty nights, he was hungry. The tempter came to him and said, "If you are the Son of God, tell these stones to become bread." Jesus answered, "It is written: 'Man shall not live on bread alone, but on every word that comes from the mouth of God.'" -- Matthew 4:1-4

Every time the Devil tempted him, he responded by quoting Scripture.

What are you going to quote?