The verse only says that nothing can snatch someone out of his hands. In other words, Satan, for instance, can’t do anything whatsoever to those whom are Christ’s.
Check out Romans 11, where Paul talks about being cut of the tree of life (Christ’s body).
Also, read this:
Phi 3:10-15 “My goal is to know Him and the power of His resurrection and the fellowship of His sufferings, being conformed to His death, assuming that I will somehow reach the resurrection from among the dead. Not that I have already reached the goal or am already fully mature, but I make every effort to take hold of it because I also have been taken hold of by Christ Jesus. Brothers, I do not consider myself to have taken hold of it. But one thing I do: forgetting what is behind and reaching forward to what is ahead, I pursue as my goal the prize promised by God’s heavenly call in Christ Jesus. Therefore, all who are mature should think this way. And if you think differently about anything, God will reveal this to you also.”
St. Paul tells us that even
he doesn’t know if he is going to reach the resurrection. If Paul doesn’t even know, then we certainly can’t claim to know! He tells us how he makes an
effort to take hold of his salvation. In fact, we know he has “true faith” as Protestants say, and that
he is already in Christ’s hand, just as the Matthew quote says, because he says, “I also have been taken hold of by Christ Jesus.” So here we have Paul telling us he is already Christ’s, yet he is unsure of whether he will have salvation!
Protestants
might try to argue that Paul is just being humble, but this is pretty large stretch of the text. Even that claim falls flat though, because at the end Paul tells us we should all think this way, and warns that if we think differently “God will reveal this” to us also. I’m not the biggest expert on the meanings of Biblical phrases, but I believe this is a reference to getting punished in Hell, or more likely a reference to Purgatory where this incorrect belief will be revealed by the purifying “fire” of Purgatory and burnt up. Compare to 1 Corinthians 3:13-15:
each one’s work will become obvious, for the day will disclose it, because it will be revealed by fire; the fire will test the quality of each one’s work. If anyone’s work that he has built survives, he will receive a reward. If anyone’s work is burned up, it will be lost, but he will be saved; yet it will be like an escape through fire.
So it doesn’t matter at all why Paul is saying he isn’t sure: he tells us that we must all think this way too, regardless of our reasons, and gives us a fearful warning against doing otherwise, which would include believing in OSAS.
