I do not think it's arrogant to be wondering why a supposedly loving God choose to kill men, women and children while calling faithful some characters who did things any Jehovah's Witnesses would be Disfellowshipped for (or sentenced by the world itself, in the case of Samson and others.)
How can a fair God say "Thou shalt not kill" then have all these people wiped-out is just beyond my understanding. And yes, I do think it's important to understand before blindly beleiving. God from the Bible seem to have two distinct personalities...the vengeful, violent one, and the one who is called Love who gave is own son to save humanity.