Glad that you agree with me!
He was not agreeing with you, he was refuting your view. He said neither we nor God "perseveres". It is your doctrine called TULIP, the letter P standing for "Perseverance of the Saints".
Your doctrine might be fine except for one GIGANTIC problem, you have no idea if you are "really" elect as I highlighted in your earlier post. The only way you can have assurance is to attempt to prove it to yourself by your own works. You are no different than those who asked, "have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
I am not questioning your salvation or trying to cause you doubt, but this is what happens when your doctrine is wrong, you paint yourself into a corner.
If you want to know you are saved, then come to Jesus in your heart, cast yourself on him. This is what believeing is, it is relying or depending on Jesus alone to save you. He has promised he will not in any way cast out any person who comes to him. Now you can KNOW you are saved, because Jesus cannot lie.
Of course, if someone has convinced you that you do not have the ability to come to and believe on Jesus, that is a serious problem.
Forget what men say, listen to Jesus and come to him, and you will KNOW you are saved.