When people hear the word slavery they instantly think of the slavery in the 18th century. The slavery in the Bible was much diffrent. The slave stayed with his master for 6 years. After that he could leave if he wanted to or if he loved his master he could also choose to stay with him. Salvery was a form of charity. When someone could not support themselfs or was poor the master would take them in and the servent would work for him.
I would say killing of children not murder. The children were not innocent. Let me ask you this question. Why would God our creator come down to earth and live a perfect sinless life and be innocent and die in our place for our sin's? Like lieing stealing,lust ( God sees lust as adultry) blasphemy aginst the God who gave us life, and everything we love in life. He gave us the law he created us and we all broken his law. Have you? But he cared enough to die in our place when he had done nothing wrong. That's what seems unjust. Don't you think so?
This was in response to me showing him some bible verses about slavery and genocide.