Here's the proof that Man is a spirit-being inhabiting a body of flesh (neutral protoplasm) so that he can interact with his physical surroundings:
---------------------------------------------------
Jam 2:26 For as the body without the spirit is dead, so faith without works is dead also.
Gen 2:7 And the LORD God formed man [of] the dust of the ground, and breathed into his nostrils the breath of life (the spirit of life); and man became a living soul.
1Cr 15:45 And so it is written, The first man Adam was made a living soul; the last Adam (Jesus) was made a quickening (life-giving) spirit.
(underlines, parentheses and bolding are my own.)
---------------------------------------------------
So the whole point is that "flesh," especially as used in the NT doesn't mean literal protoplasm. I believe the best biblical definitions would be "natural humanness" or in some instances, "human/carnal thinking":
----------------------------------------------------
1Pe 4:1-2 Forasmuch then as Christ hath suffered for us in the flesh (disregarded His natural human desires even unto death), arm yourselves likewise with the same mind: for he that hath suffered in the flesh (put his carnal thinking to death) hath ceased from sin;
2 That he no longer should live the rest of [his] time in the flesh (following carnal thinking) to the lusts of men, but to the will of God.
Act 2:30 Therefore (David) being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
Rom 1:3 Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh;
Rom 9:3 For I could wish that myself were accursed from Christ for my brethren, my kinsmen according to the flesh:
2Cr 10:2 But I beseech [you], that I may not be bold when I am present with that confidence, wherewith I think to be bold against some, which think of us as if we walked according to the flesh. (in human thinking)
Eph 6:5 Servants, be obedient to them that are [your] masters according to the flesh, (earthly, rather than spiritual masters) with fear and trembling, in singleness of your heart, as unto Christ;
Rom 7:5-6 For when we were in the flesh (unregenerate), the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.
6 But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not [in] the oldness of the letter.
Phl 3:3-4 For we are the circumcision, which worship God in the spirit, and rejoice in Christ Jesus, and have no confidence in the flesh (human ways).
4 Though I might also have confidence in the flesh. If any other man thinketh that he hath whereof he might trust in the flesh, I more:
Col 2:5 For though I be absent in the flesh, yet am I with you in the spirit, joying and beholding your order, and the stedfastness of your faith in Christ.
(underlines, parentheses and bolding are my own).
---------------------------------------------------
The Greek word for "flesh" is "sarx." Here's the correct definition:
b) used of natural or physical origin, generation or relationship
1) born of natural generation
c) the sensuous nature of man, "the animal nature"
1) without any suggestion of depravity
2) the animal nature with cravings which incite to sin
3) the physical nature of man as subject to suffering
3) a living creature (because possessed of a body of flesh) whether man or beast
This is the definition I think is most biblically accurate as used by Paul, Peter and the other NT writers. It is a SPIRITUAL, rather than physical definition:
4) the flesh, denotes mere human nature, the earthly nature of man apart from divine influence, and therefore prone to sin and opposed to God.
Very Best Blessings,
Arphaxad