One night when I was thinking and praying, I said in my mind, “I will sell my soul. ” Does this mean that I did? Then on another day I was thinking out loud and said, “I would sell my soul for nothing. ” I meant that I wouldn't sell for my soul for anything. Does this mean that I sold my soul or do I still have it?
There is a former question and answer at this web site which is related to your question. We would encourage you to read it. The title asks, “Can you sell your soul to the Devil?” The answer to the question is, “No!” We cannot sell our souls because they are in God’s control. No one can sell one’s soul to the Devil, but we can act as if we were his children. The Holy Spirit tells us in 1 John 3 that,
By this the children of God and the children of the devil are obvious: anyone who does not practice righteousness is not of God, nor the one who does not love his brother. (NASB) 1 John 3:10
This passage says that it is possible for people to act like they belong to the devil. That is, they act as if they are the “children of the devil.” The lives of such people are characterized by ongoing patterns of sin. They practice unrighteousness. They love others selectively. They are unapologetic towards others when they have sinned against them. They live for themselves. The children of the devil practice the following sins:
Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things will not inherit the kingdom of God. (NASB) Gal. 5:19-21
The children of God are those who have accepted Jesus as their Lord and Savior. The children of God seek and strive to avoid sin. They are unwilling to practice sin. They confess their sins to God and repent. They want to flee sin. They seek peace with all men (Rom. 12:18).
No, you have not sold your soul. But Jesus does want you to believe in Him. If you do, He will take your soul or spirit to heaven when you die to be with Him forever. It requires only that you believe in Him. You will become one of His children. That is great news!