You don't know a lot about Christianity or you wouldn't get it all twisted. We confess and forsake our sin when we come to Christ through the grace of God's free unchangeable gift of faith and Salvation. If we had to work to stay saved there would be no peace in Christ. Jesus did the work on the cross.
Does a loving wife or husband have to "work" to stay faithful?
God's grace calls us to faith and Salvation. And God knows everything from beginning to end. And Jesus said no one who comes to him will be lost. When God knows us from beginning to end and still calls us to his grace, God knows what's going to happen between then and the day we die.
What about those who come, but fail to "abide" in the Vine? Living branches stay connected - separated branches dry up and are
burned in the fire.
If we lose faith that's not going to surprise all knowing God. He died to save us. He's not going to give up on us because we make mistakes.
Only the Just Man makes mistakes - the Presumptuous Man keeps a OSAS License to Sin in his wallet. As for giving up, saints won't end up in hell because God gave up on them - they gave up on God.
We are sealed unto the end of time when we're in the faith.
Like all OSAS folks, you interpret "seal" as "fixed fate" rather than accept the Biblical interpretation: sign", "token", "mark". "And (Abraham) received the
sign of circumcision, a
seal of the righteousness of the faith..." -Romans 4:7 KJV The righteous receive the Seal of God and the wicked the Mark of the Beast - both deal with truth and counterfeit laws, respectively:
"Bind up the testimony;
seal the law among My disciples". - Isaiah 8:16 KJV.
"Here is the patience of the saints: here are they who
keep the commandments of God." - Revelation 14:12 KJV
If those who don't get the Mark of the Beast are keeping God's law, those who get the Mark are breaking it.
Everything you and others who are opposed to the Gospel, and that is what you are when you deny its message, are failures before God's eyes.
Because you work to lead people to doubt their Salvation. And as you do that you impart the message God lied, and Jesus died for nothing. I would feel sorry for you if you weren't so committed to going to Hell and taking others with you. The blessed good news that counters that? You shall never ever be accompanied by a single Christian there. Happy trails.
The only damage the Conditional Salvation crowd does is water damage - by raining on the OSAS parade. OSAS is the perfect covering for the presumptuous sinners. They want Jesus to be their Savior from hell, but to hell with being obedient to Him as their Lord.
"And why call ye Me Lord, Lord, and do not the things which I say?" - Luke 6:46 KJV