Ah, the 'chosen'. (Eph. 1:4) Paul says the chosen (elect) were chosen 'before the foundation of the world'. (This is the Greek word katabole, which means casting down - overthrow) Genesis 1:2. Meaning, they are the ones, like Paul, justified... And yet Paul showed what his passion was before he took that trip to Damascus. Now, what was Saul's/Paul's problem. Well, one only need to read Stephen's sermon in the book of Acts, to see what those of the religious order were against.
Stephen did give a really decent sermon on Christianity and its early beginnings all the way back in the 'Old Testament'.
You need to know it’s very difficult understanding where you’re coming from you seem to be responding with an opinion which isn’t addressing the flow of the conversation and instead moving it to some ‘other point’ you’re attempting to make.?????
Clearly no one could argue that God wouldn’t know those who are His...equally as much the ones who are not...and this throughout History past, present and future.
So again why would you see a need to “demonstrate” to God that you are in Christ?