Bro r u born again christian ? If not we have to start from there !
Your doubts are all shows that you
are not belleive very basic fundamental things like God, Jesus,
Sin, Satan, Heaven, Earth, Hell etc we
can question every thing for to believe,
but argument sake if you approach it
will give you and me confusion only.
If we want to give answer other non
Christians also, answer should be from
the word of God, otherwise every thing
look bleak. Bro, we have to encourage
others to get salvation ! That is ultimatum for God the father, Jesus Christ , sin, cross, resurrection, 2nd conning, Holy sprit, Heaven and Hell !