God allowed certain things to happen in the Bible that seemed horrific but justifiable. What it all boils down to is God is proving a point. Kind of like a parent and his/her children. I would probably, in some cases, give my child instruction that may seem obsurb in some peoples eyes. But when in fact I'm just simply letting that child no that I'm his/her father and there is no other like me.
Then, based on your logic and claims, you must be giving your child all lessons from the bible:
"Whoever strikes his father or mother shall be put to death. (Exodus 21:15 NAB)
If one curses his father or mother, his lamp will go out at the coming of darkness. (Proverbs 20:20 NAB)
All who curse their father or mother must be put to death. They are guilty of a capital offense. (Leviticus 20:9 NLT)
They entered into a covenant to seek the Lord, the God of their fathers, with all their heart and soul; and everyone who would not seek the Lord, the God of Israel, was to be put to death, whether small or great, whether man or woman. (2 Chronicles 15:12-13 NAB)
The LORD then gave these further instructions to Moses: 'Tell the people of Israel to keep my Sabbath day, for the Sabbath is a sign of the covenant between me and you forever. It helps you to remember that I am the LORD, who makes you holy. Yes, keep the Sabbath day, for it is holy. Anyone who desecrates it must die; anyone who works on that day will be cut off from the community. Work six days only, but the seventh day must be a day of total rest. I repeat: Because the LORD considers it a holy day, anyone who works on the Sabbath must be put to death.' (Exodus 31:12-15 NLT)"
So, do you teach your children these "justifiable" lessons from the bible?