Rosemary, I find t hard to believe that just because I believe salvation can be lost in time, you think God needs to grant us mercy and we’re horribly deceived. I don’t think God needs to grant you mercy and you’re doomed.
If a believer thinks they are heaven bound no matter what they do but still follows Jesus their whole life, great!
If a believer thinks they are heaven bound no matter what they do and starts to live a life of sin, and they are wrong, very bad.
If a believer thinks that while they are saved they need to
continue in the faith their whole life but we’re wrong, no problem.
If a believer thinks that while they are saved they need to continue in the faith but are right, good thing.
The only bad outcome is for the OSAS believer who was wrong and neglected their salvation until it didn’t exist anymore.