And here is where I will bow out.
Victor, I wish you the best but I can agree that we have very different... theologies. Thank you for sharing about yourself.
I do agree with you that yes, God can work in us to make a difference in the lives of others. But we must also keep in mind the reality of life as well, and that people will make their own choices. Samuel tried his best to help Saul, and when Saul persistently disobeyed the Lord to the point of rejecting him, Samuel wept over Saul but could not change him.
Yes, some people who have murdered can be miraculously changed for God (case in point, the Apostle Paul.) But for some, this means staying in prison the rest of their lives and serving others in the prison. And some simply do not want to change, and have come to like the very things that landed them in prison.
I once wrote an inmate who was in his early 30's and had been in prison almost half his life. He had attempted to murder his parents after years of abuse. One survived and one did not. He had been very involved in street life and would also talk about at least one other murder he had committed. Over the years, he had become someone who wanted to lash out at other people and the more damage he could do, the more satisfied he felt. His time in prison was filled with a record of attempting to harm/kill other inmates and officers, including nearly decapitating another inmate and beating another into a state of permanent disability due to brain damage. He would openly state that he "enjoyed the process" of taking another human being's life and that people "die too quickly", and that "the thrill is over too soon."
God does indeed commission us to have compassion, love, and care for others.
But He also gives us common sense as well. We might cry for the person and pray for them continuously, but there are some people who refuse to change and/or blame everything on someone else. It might be someone who murders, or has an addiction, or refuses to give up things God says to give up.
There is a time to minister, and a time to face reality, like Samuel, when God is telling us to walk away, because, He has other ways in which we are to be obedient to Him, and other people He wants us to serve.