I'm saying you misunderstand the Gospel.
Salvation is not conditional. We do nothing to attain it. And we can do nothing to lose it. Else,God,who called us to him and knew us before creation, didn't know enough to realize we'd one day do something to prove him wrong and that we are unworthy of his grace so as to have him need cancel and reverse all that he did in redeeming us.
I don’t like to assign to others what they understand and don’t understand, but clearly 1 Corinthians 15:1,2 shows that holding firmly to the gospel is required to be saved. Not holding firmly to the gospel is believing in vain. I’ve firmly grasped that.
Let’s be clear. Paul said it’s possible to believe in the gospel in vain. Let that sink in for a moment.
So let me ask you, then. How does one believe in the gospel, but it produces no result or is useless?