Many people claim that God speaks to them, and that they are prompted in various ways by the Holy Spirit. I agree with this, and would add that I think that one of the ways that God does this is through our thoughts.
Is it that hard to imagine that perhaps not all of our thoughts come from our own intellect? Could God be blessing us by giving us certain thoughts? Maybe giving us thoughts of encouragement or thoughts that would influence us to act in a given situation. I know personally of times when I have been reasoning out various ideas, and am given insight from a different direction that allows me to continue the idea further. Call me crazy but I attribute that thought to God.
Now if that is true, and some of my thoughts are not my own but given to me by God, could it also possibly be true that Satan could do the same thing? To illustrate this point I think of lust since lust is a sin that takes place in the mind. There are times that I am tempted and an image will cross my mind. At this point I believe that the image is still only a temptation and that I have the choice to dismiss it, or I can take hold of that image and manipulate it with my mind, turning that temptation into sin. I don’t believe that the image just happened to flow through my minds eye by chance. I believe that the devil is able to give us thoughts just as God is able. In fact I would go so far as to say that if Satan doesn’t put these thoughts in our mind, then how exactly is he able to tempt us? I mean, really, we’ve all been tempted probably countless times, but do we ever stop to think about the precise manner in which we are tempted. I think that because of the subtlety of it we don’t think about it, and that is exactly what Satan would want. If we were to realize the venue for which he infiltrates us then we could stop it. This is whole reason why God gave us armor (The Armor of God Eph 6:10-20). This is armor not to protect our body, but our mind. Remember that if the mind is the battlefield; we need to always be wearing our armor.
He said "Believe Me"
2 months ago