dear brother,
see,
this is why you could not understand the real meaning of 神揀選.

how is it possible for a human being to tell you 神的理由?

even your father or mother is impossible to know your 理由 to 揀選
your wife!

Gen 2:17, please read it again, it is a bad news.
Since then, human being got human being's STANDARD
to judge everything, good or bad, human being's STANDARD
concerning good and bad is absolutely against God's
STANDARD, Paul concluded ALL MEN ARE SINNER,
who are enjoying themselves very much
and who are not seeking God, based on this reality,
or stating from here, it is possible to understand
神為什麼揀選你, not because you are better,
but because his mercy and grace!

Next question you must ask:
why He showed mercy to me not the other one??!!~
nobody knows but Himself!

reason vs result
crystal clear, is not it???!!!