Incorrect:
1) The verse does not say that the call is the cause of their justification.
Well I think we can conclude that it does.
1. Someone must be called before they can answer a call.
2. When someone "hears" the call, they either respond or don't respond, based on a few things -
a. their ability to respond or not respond.
b. their willingness to respond or not respond (this I believe is a subpoint of a).
Either way, the call itself is the what brings someone to answering the call, for one cannot answer without first being called.
So there is something about the call that brings about the response, otherwise, if everyone heard the same call, and everyone had the same ability to respond to the call, then there would be no explanation for the opposite responses between men (either coming to Christ or denying Him).
2) 'Turning to Christ' is not the same as 'justification.' See Romans 3.
Sure, justification has more judicial implications than that. However, before one is justified, He must be
inclined, for how can one answer a call in which he is hostile to? Turning to Christ is certainly an aspect in becoming justified; you must accept Him before His blood cleanses you, no?
The ground Jesus specifies is doing His Father's will. That is consistent with what Jesus said in Jn. 14, and who He and the Father will make their abode with. As for your connecting 'know' with 'foreknew' here, I would dispute that, but as for this passage it is not that material.
How this is a refutation, I am unsure. Your original argument was that "
those whom He foreknew" in Romans 8:29 is not necessarily referring to only "
those in Him" in 8:1. And I showed how Jesus knows
those who are His and
those who are not. Whether you accept the context or not is of no matter; the principle stands. God foreknew those whom He would save, and had relations with them before the foundations of the world in Christ. Those whom He did not foreknow, He did not have relations with, and therefore are not destined to be in Christ.
Agree that all are called. Few are foreknown? We cannot say for certain how many. God knows the future, and He knows ahead of time who will accept the gospel call. Those who accept are justified, etc.
I can say "few", because those who are foreknown in 8:29 are the ones who are chosen. And Jesus clearly says "many are called but few are chosen". Doctrinally there is no problem with interchanging God's intimate foreknowledge of His elect with His choice of them. They are both true and both limited to them in scope.