If you are elect it seems to me you should be able to prove you are and you have never done this.Whether Timothy was a Jew is irrelevant. Timothy was a Christian minister in Ephesus. Paul identified himself as an apostle to the Gentiles, then comes the passage concerning enduring for the “elect”.
The context is clear. Paul was referring to Christians in general and Gentile Christians in particular when he used the word “elect”.
We are just talking passed each other now, so I’ll leave you to it.
Thanks for the conversation
peace to you
MB