The flesh does not include the soul: the soul is not in the flesh itself
That is where you err.
"Now may the God of peace Himself sanctify you entirely; and may your
spirit and soul and body be kept complete, without blame at the coming of our Lord Jesus Christ." 1 Thes. 5:23
They are all highly integrated ... "we are fearfully made"! However, if the soul were the same as the body or the spirit, this verse would not make sense. Furthermore, if the soul was the same as the spirit they could not be separated. Yet we find that they can be ny the WORD.
"For the word of God is sharper than a two-edged sword, piercing even to the
division of soul and spirit ..."
Heb. 4:12
" I say then: Walk in the Spirit and you shall not fulfill the lust of the flesh. For the flesh lusts after the Spirit and the Spirit against the flesh and these are contrary to one another, so that you do not do the things that you wish."
Galaltians 5:16-17
Wait a minute, if we no longer have the flesh, (as you and 1stCenturyLady presume) how could there be any war going on between the two? And why would it be necessary to warn us about lusting when we are Christians? Because we can be carnal Christians, immature and so.etimes backsliding into our old ways. The Corinthians, Galatians, Romans and all were warned about this behavior we needed to control.
The flesh is the soul, which is the mind, will, emotions, personality - not the body. Where do fleshly desires begin? Your eyes see something or you think of something that you want/lust after. It begins in your mind as thoughts. This is why the Old Self_ after being Born Again_ still has remnance. There are memories of your old ways, desires, lusts, dislikes, hatred, evil thoughts and they resurface. We are no longer slaves to them but must contend with them as Paul did and everyone does. Our spirit is cleansed and sealed, but we still have to control the flesh and it gets easier as we grow spiritually.
The flesh does not include the soul: the soul is not in the flesh itself.
We walk in the flesh of natural bodies, but we are not flesh nor bodies, we are souls.
The Bible reminds us over and over to walk in the Spirit and not in the flesh. If it were automatic at our conversion, the world would see perfect Christians walking around full of love for everyone. Do they? Does everyone who knows you see you as a perfect expression of Christ? Waiting for that answer.