So, how can I sum up this thing called the flesh?
This way: Any sin committed (read: disobedience of God’s command) starts with a desire in the flesh (the flesh is like the insides of a gutted organism, darkened, and covered in iniquity–iniquitous desires, some latent, some buried, some alive, are those that cause one to sin a particular way and can come down through family) At this point, one can subdue the desire, by calling on Jesus for help–the advocate for people in need who is willing to help to those that call. Having his Spirit with us can help us then.
However, desires of the flesh may grow inside the flesh and as one gets along with the walk of life, certain actions, behaviors and thoughts can come from the desires of the flesh, until they give birth to a sin.
What has one done? Although one sins, God has given Jesus as an advocate for those who have believed in him. The sin can be forgiven, forgotten, and one can get on with Jesus in their lives, an ever present help in times of need. The ability to be saved from the flesh and the sin comes from the Lord Jesus’s salvation–when we put out faith and trust in him.
The desires of the flesh can deceive the host, the person in which lives the flesh. The flesh can go unnoticed. But God is good, as God can illuminate one’s condition, then seek God’s help for this condition inside everyone.