I noticed in a MacArthur commentary on 1 John that he (MacArthur) interprets “the whole world” in 1 John 2:2 as actually implying the elect. I’ve also read commentaries that suggest the passage is describing Christ as the propitiation for the sins of the whole world (every person) inferring that He is the one and only acceptable and atoning sacrifice for the sins of the world (the commentary maintained a Calvinistic understanding of limited atonement).
My question is, for those who would interpret as MacArthur has, what is the justification for reading the “whole world” in 1 John 2:2 as the “elect”? It seems to me that it is an unnecessary stretch in interpretation, but perhaps (and very likely) I am unaware of a valid hermeneutical principle at work here.
You are right, it is a "stretch" to assume this applies to only the elect because the verse itself separates the elect from the "whole world" with one little phrase that says "and not for OURS ONLY, but ALSO for the whole world".
The Calvinist will attempt to accuse those who read this verse literally the way it was written, as being universalists, which means they have to redefine "propitiation" as being saved, when that's not what propitiation means. Propitiation (
hilasterion) means that the payment necessary to appease God for sin was satisfied in Christ. The 'getting' of that propitiation is through faith:
"Whom God hath set forth to be a propitiation
through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;" Romans 3:25
John Calvin commented that the latter half of verse 1 John 2:2 was to the "dispersed of the elect" throughout the whole world, but that is in direct conflict with what the verse actually says. This would have the effect of making every single verse in the NT have a limited application to ONLY those people to whom it was written to, and only having an effect toward future readers if there were a qualifier (such as "and also the whole world") and thus there would never be any objective determination as to who the audience is.
If the audience intended by John were all elect, then it can not be assumed that the latter half of verse 2 is some kind of different elect that has not yet been gathered because John himself does not make that kind of distinction. Such a distinction must be deliberately eisegeted into the text when the plain reading of the verse shows that the "US ONLY" and "ALSO for the sins of the WHOLE WORLD" are a different class of people, the latter of which are clearly ALL unsaved prospects without limitation.