The, "whosoever believes", and "the world", and The Elect are the same individual souls.
thats what you are some others would try to have us beleive. The Greek "kosmos" is defined by leading Greek works as;
J H Thayer:
“the inhabitants of the earth, men,
the human race. Jn. i.10, 29, iii.16sq”
W F Arndt and F W Gingrich:
“
of all mankind, but especially of believers as objects of God’s love”
J Parkhurst:
“the world, i.e., the
whole race of mankind, both believers and unbelievers, both good and bad.”
E Robinson:
“the world for the
inhabitants of the earth, men,
mankind. John.1.29, 3:16”
Hermann Cremer:
“It denotes the ordered
entirety of God’s creation, humanity itself”
The NIV Theological Dictionary of New Testament Words:
“in Jn. kosmos almost always denotes the world of humans, esp. the world of sinful humanity that opposes God, resists the redeeming work of the Son, does not believe in Him”
G Kittel and G Friedrich:
“All the meanings of kosmos come together in the usage of the Fourth Gospel. Not just the Prologue uses kosmos for
the world in the sense of the universe”
W E Vine:
“the
human race,
mankind”
A T Robertson:
The world (
ton kosmon). The
whole cosmos of men, including Gentiles, the
whole human race. This
universal aspect of God's love appears also in 2Co 5:19; Rom 5:8”
M Vincent:
“The
sum-total of humanity in the world; the
human race”
Even the Reformed theologian, Robert Dabney says:
"In Jno. iii; 16 make 'the world' which Christ loved, to mean 'the elect world'; and we reach the absurdity, that some of the elect may not believe and perish"
And, John Calvin, whose name many use by calling themselves, "Calvinists", says;
"
That whosoever believeth on him may not perish. It is a remarkable commendation of faith, that it frees us from everlasting destruction. For he intended expressly to state that, though we appear to have been born to death, undoubted deliverance is offered to us by the faith of Christ; and, therefore, that we ought not to fear death, which otherwise hangs over us. And he has employed the
universal term whosoever, both to invite all indiscriminately to partake of life, and to cut off every excuse from unbelievers. Such is also the import of the term
World, which he formerly used; for though nothing will be found in
the world that is worthy of the favor of God, yet he shows himself to be
reconciled to the whole world, when he invites all men without exception to the faith of Christ, which is nothing else than an entrance into life."
et gloria Dei est