If I am wrong about the scripture, there should be a scripture that proves me wrong.
It doesn’t matter. Anti-Catholics twist everything, anyway. Whatever you say will be purposefully misunderstood by people who want to ignore you.
OR you can hang around for the Dispensation of Grace to end with the rapture of the Church the Body of Christ, and go into the Dispensation of the Millenial Kingdom, which begins with the Tribulation. Of course, you will want to "endure until the end". Good luck with that. And you're right your persistence should give you a good start. If you can endure.