What does it mean to "believe in Jesus?"
That is a good question.
If we believe in Jesus, what do we believe?
Wouldn't we, of necessity, believe He will lose none but give them eternal life and raise them up on the last Day?
If so, how would you say that people fail to abide in Him and are cut off--and how would you reconcile that reality with the statement that Christ will lose none?
In 2 Chronicles 32:21, the prophet had prophesied provision to the besieged city of the Jews, and a Jewish man had expressed doubt, and the prophet said that, because of his doubt, he would see it with his eyes, but he would not partake of it--ultimately, the man was killed in the stampede that resulted from the provisions, so he saw it but did not partake.
So, also, it may be that "the faith" includes this element that "Christ will lose none", and abiding in Him, and His words in us, would, of necessity, include this affirmation. It may be, also, that men are given a window of time, of mercy and grace, to come around to this conclusion (just as Peter, new to the faith, still believed he had to keep the dietary Law, and believed on Jews could be saved--both were corrected, as the Spirit led him into truth in His timing, not immediately, when he was given the vision and went to eat with and preach to Cornelius).
So, being that I believe God can forget righteousness (Ez 18:4), and that "faith is counted as righteousness" (Ro 4:5), when someone irretrievably falls away (some fall away in a retrievable manner--eg, the Epistle to the Hebrews, the Epistle to the Galatians) from the faith (perhaps inclusive of this doctrine that "Christ will lose none"), God forgets their righteousness of faith (there're many proofs for this dynamic in the NT), it
retroactively becomes that they never partook of Christ--such that they do not "lose faith", preserving the promise that Christ will lose none (because Christ, retroactively, never said He would keep them--ie, because God forgot their righteousness of faith, it never happened, and Christ never said He would keep them).
Thus, it remains true that Christ loses none, but, because of their unbelief, they behold the provision but do not partake of the provision.
You may argue, "Yes, but doesn't Hebrews 3 also teach that men can fall away from the faith, into unbelief, due to actual sins, which have the effect of hardening their heart--that sin, itself, disobedience, can lead to unbelief? Because faith is completed by works, thus faith that is incomplete, that is not completed by works corresponding with that faith, itself, results in unbelief? Don't we have to do works to keep our faith?"
Sure, however, Christ also says, "Apart from Me, you can do nothing [good]."
The "job" of a branch is to RECEIVE from the Vine... and only then will it have the inward substance needed to manifest outward signs of inwardly abiding substance. The end times will be dangerous because men will have a form of godliness but denying its power. God doesn't want us to have an outward appearance of a relationship with Him, or else what are our good works leading men to? Our good works are meant to bring others into relationship with God... but if we ourselves lack that relationship, how can we bring others into it? Then we merely have a superficial godliness but without the inward power/substance.
Therefore, believing Christ will not lose us may be an aspect of the faith that causes us to abide in Him, and then have the inward substance and power to outwardly bear fruit that brings others into that same connection we ourselves have through faith.
So, in this sense, I have come around to agreeing with the Monergists, though, obviously, not on the same bases as the Monergists--I've become "
Oddly OSAS".