The World

In law, a nation is people (a political body), not a landmass.
Nation. …. The people is the political body brought into existence by community of laws, and the people may perish with these laws. (Black's Law, 1st Edition)
In reality, man cannot bring “people” into (and out of) existence with laws or contracts. This can only occur as a mental construct, not in reality.
Nation. …. A people or aggregation of men, existing in the form of an organized jural society. (Black's Law, 1st Edition)
Again we have a “form”, an “appearance or superficial aspect rather than the substance or essence”. Another mental construct.

In truth, the people are the aggregate of man, created by God.

The world is a "system" of societies (aka nations), each one "brought into existence by a community of laws". The earth is real, a creation of God, but the world is a creature of man's mind. Societies and nations would not exist if man did not believe in them and animate them. Society is a collective belief, just like religions. If (all of) man were to suddenly self govern according to God's laws and deny the contemplation of society or its laws, society as we know it would evaporate before our eyes. Society does not exist in reality, you cannot touch it, it exists “in form” (appearance), in the mind.

What does your world look like? Is it exactly the same as mine? Each man sees the world slightly different. The world is of “form” just like the legal entity known as a human being and the entire legal system. Only God can create a law of substance/essence.

World. public life, or society (Webster’s 1828)

The world is ungodly ….

Worldly. 1. Secular; relating to this life, in contradistinction to the life to come. 3. Human; common; belonging to this world.

Worldly. Concerned with the enjoyments of this present existence; not religious, spiritual, or holy. (Ballentines 3rd)

Worldly. of or pertaining to this world as contrasted with heaven, spiritual life etc. (Random House Unabridged 2nd Ed.)

John 18:36  Jesus answered, My kingdom is not of this world...
His kingdom is not of man's mental and secular perception. His Kingdom exists in truth.

John 2:15  Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him.

Psalm 24:1  The earth is the LORD's, and the fulness thereof; the world, and they that dwell therein.
Note here that the world is the LORD's. So he can do with it as is seen fit.

James 4:4  Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.

Galatians 6:14  But God forbid that I should glory, save in the cross of our Lord Jesus Christ, by whom the world is crucified unto me, and I unto the world.
The cross of our Lord Jesus Christ separates us from the world of deception. Where the world is, a man of the cross is of no effect. Where a man of the cross is, the world is of no effect. Is this the antithesis of the legal ID on the fictional side? If you carry both the cross and legal ID do you not have two masters to mind ... and a double mind?

Oblation.  An offering; a sacrifice; anything offered as an act of worship or reverence. (Samuel Johnson's Dictionary 1755)
The will gives worth to the oblation, as to God's acceptance, sets the poorest giver on the same level with the richest. (South)

Hence, there is a place for "man" (on earth) and a place for the “natural person”, "natural man" and/or "human" (in the world). But they are all God’s domain. If one rejects God and the true law, truth is rejected and liberty is rejected. One ends up a “natural” with deception and servitude in the world.

Psa 89:11 The heavens are thine, the earth also is thine: as for the world and the fulness thereof, thou hast founded them.

Romans 13:1 Let every soul be subject unto the higher powers. For there is no power but of God: the powers that be are ordained of God.

The higher powers of the heavens and the earth are of God, but worldly powers are of man - just as the human is of man. 
Every living soul is subject to the higher powers of God but every human is subject to the worldly powers of man.