Summer Series: #7 - A Family Matter?

In Exodus 3 Moses marries Zipporah, a Midianite woman. In Exodus 18 we see Jethro, Moses' father-in-law and the priest of Midian, offering Moses some valuable advice. In Numbers 10:29-32 Moses asks his Midianite brother-in-law to come with the Israelites as a guide. As far as I am able to tell Moses had a very good relationship with his Midianite family. Imagine, then, how difficult is would have been for Moses to hear these words from God:

"Take vengeance on the Midianites for the Israelites. After that, you will be gathered to your people."
(Numbers 31:2)

Moses heeds God's word and commands the Israelites to fight the Midianites and to kill every one of them. Imagine the pain that this must have brought Moses and his family. I wonder if this passage can shed any light on the words of Jesus in Luke 14:26:

"If anyone comes to me and does not hate his father and mother, his wife and children, his brothers and sisters—yes, even his own life—he cannot be my disciple."