That is an excellent question and one for another thread. But has God ceased the idea that evil should be killed?As creator and sustainer of all life God has the total right to do as he pleases. And yes this will always be for a loving reason. So please put 'flesh' on your arguement - Why does the bible say God ordered Saul to make war in this case?
Can a believer be a policeman?
I asked you a question earlier and I will ask it again. If the goodman of the house prepares for and prevents the theif from stealing, then should we not do the same?
An even more important question I asked you earlier. If God granted you a daughter, would you stand by and turn the other cheek while she was raped and murdered? What kind of man would do such a thing? God says that the goodman would not allow this to happen. So if a goodman will not allow it, what kind of man would allow it?
We can focus on the life and teachings of Christ. They are the same as the teachings of the OT. Not only judges, kings and prophets went to war, but men of faith! Do we hear God as they did? Yea! Because we have his spirit in us today and he speaks to us the same truth.