It is the story of Abraham and Isaac. In the story, being willing to kill your child, just because God tells you to do so, is considered to be a good thing. One either accepts such stories or one does not. Every Christian, every Jew, and every Muslim, should be willing to do that, as it is part of their heritage. It is only by rejecting their own sacred scripture that one can consistently refuse to kill one's children when commanded by God to do so. All of the Christians, Jews, and Muslims who would refuse to kill their children, whenever God tells them to do so, are rejecting the clear message of text sacred to them, and without which, their religions are unsupported and unworthy of belief.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.
