I appreciate you thinking through this, and making an effort to answer more articulately.
Different Christian philosophers and theologians all deal with this differently, and would offer different answers.
I could post more scripture, and logical arguments, but I think you see the point here:
it's a very complex issue, and it may be one of those areas in scripture where the data is underdeterminative.
For the sake of this thread, it might be best to just revisit the title, and rethink the thesis.
"Do our thoughts control us?"
The thesis doesn't specify mind or heart, but just thoughts.
As you described the heart, mind and will, you were clearly describing different centers of spirit or consciousness for which "thoughts" occur in each. Thoughts can be seen to occur, even by your own definitions, in each of those places.
So for the sake of this thread, making a distinction between mind and heart (if such distinction truly exists ontologically) would seem to be beyond the scope of the thesis.
Wherever thoughts do occur... they do indeed seem to be handling the steering.
Interesting stuff, but terribly messy and complicated.
Have a great week.
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I think, emotions respond to thought. Therefore whatever a person thinks, so is he (Proverbs 23:7)
Thought to this day has not been found in our brains. Eye sight, feelings of, hearing, touch etc.
Thought I do believe comes from the Heart. Either one's heart gets seen as evil by the first born person and in need of new life, which is the risen Jesus Christ for us the people to get given the new heart, offered by belief, 100%. Ezekiel 36:26. God gives it. I need to be dead to the first born me, reckoned this as in Romans 6:1-12
Me I see this, I am in a body of unredeemed flesh and blood, that fallen nature of the first Adam. Which is why man cannot be perfect to fulfill Law, man can do a few, some many, yet not all. yet can't be perfect, no flesh can or could but Son Jesus, (Romans 8:1-3) who was born of Woman, not man
Back to Emotions
Emotions, do not know any right or wrong. Emotions, predictably respond to whatever is in the mind at that moment of that person, and it is by thought one is controlled in emotions over the thought, happening in the mind at that time.
Try this/ Get Angry, mad Upset, right now. without the thought(s) of anger, upset's!
That is why, we are to take all thought captive to the mind of Christ.
Hoping, to help us grow deeper in the grace given us to see it clearer. Then see the other side of the double edged sword. And know God is sharper than any double edged sword.
The other side of the command to not sin, where sin takes occasion by the commandment to not do, one does it anyways. Romans 7
Then one learns not to do it and stops, EX: drinking too much. Then Pride tries to take you for a ride and make you a "Betty better than you" (Luke 18:9-14)
Guilt and pride are not of God. God hates, guilt and pride that evil gets us into doing evil, by commanding one to not do it. Sin happened before the Commandments, and after that sin got worse, being made aware of Sin. Yet God's Grace abounds deeper, for us to leave the command alone and simply uphold it s best for you to be in it by God for you, not self flesh or anyone else's either
By God through risen Son , where the new life is at, now able to say no freely. Is Real. Yet once one sees this and chooses this truth, sin does begin to fall off of them, that had them trapped in it. Yet it take=s time, in continuance to continue to trust God, that you remain in thanksgiving and praise for the grace given. (2 Cor 12:7-10) by God forgiven and are learning new, now wiping out bad habits that developed in you prior to seeing the truth of God, (it is no longer you trying to do it, it is God in risen Son now doing it new through you. In, It is finished for you on that cross of Son. God wiped out all sin, then and there, so we can have a relationship, with you, to see what God tell's us is best for us. To become willing to do or not do. To learn it is God alive living the new you through you, only if you are willing between God and you
Thank you
Bottom line, the born again, cannot harm people anymore. Yet it does not take away the thought(s) of wanting to harm or hurt or manipulate for self gain. That is the reality y'all