Numbers 31

1:2  “The Lord spoke to Moses, ‘Execute vengeance for the Israelites against the Midianites.  After that, you will be gathered to your people.”
The purpose of this war was to get rid of anything inpure, whether people or items.  Those who went to war killed the men, but captured the women, their dependents, livestock and property.  They brought all this to Moses.
14:16 “But Moses became furious with the officers, the commanders of thousands and commanders of hundreds, who were returning from the military campaign.  ‘Have you let every female live?’ he asked them.  ‘Yet they are the ones who, at Balaam’s advice, incited the Israelites to unfaithfulness against the Lord in the Peor incident, so that the plague came against the Lord’s community.'”
Am I really hearing what God is asking me to do, or am I infusing my wants and desires into what he is asking me to do?  At what point do I begin to veer off onto my own path?  How can I begin to recognize this point?