How God made it all is the mystery, not how to be saved. He had a book of instruction written and given to us. The Holy Bible.
lol. Bible = basic instructions before leaving urth. too funny.
ok, to run the subject into a different direction, just for discussion, back in the day there was one Jesus, working for YHWH, the mighty War-God. the population was what? i have no clue, honestly. maybe 2 million souls, more or less?
now, there's 7 billion plus souls, more or less occupying the earth? agree?