This is something I've struggled with. I've seen people do great evil due to their selfishness and jealousy. Have you seen God avenge as Scripture says? How have you handled this?
The problem of evil is this: if we obey Scripture to the letter, do not retaliate when evil is done to us, do not repay violence with violence, turn the other cheek, etc., the Axis conquers the world in World War II, all of the Jews, Gypsies, Gays and cripples are gassed, and we just trust that God will make it right in the afterlife.
As nations - sinful nations at that (racial segregationists in America, violent imperialists in England, France, Holland, Belgium) - we did not trust God enough to wait on his justice. We retaliated, very, very violently, we flattened cities in response to their violence, we crushed our enemies, drove them off our shores, and occupied them instead.
To have done nothing, borne this evil, stayed out of politics, and essentially permitted a new "Roman Empire" to have conquered us rather than kill some 30 million people, most of them civilians, in war and its effects, would have been in keeping exactly with what Christ said.
The bulk of our people - American, British, French, Dutch, Belgian, Canadian, Australian, New Zealander, etc., decided that waiting on God and trusting he would have made it right - or accepting the scourge of Axis conquest as the justice due to us for being evil nations - was not acceptable. We did not turn the other cheek, we retaliated violently, and we won.
It would have been more christlike to have surrendered at the outset. I have no intention of ever being that Christlike. Yes, God COULD intervene and make it right, and sometimes he does. Perhaps all of our nations are too objectively evil for him to intervene on behalf of ANY of them in the modern world. That's probably the case.
Given that, our choices are to not turn the other cheek and repay violence with greater violence, so that we and our children live at the price of them and their children dying, or we accept conquest and death and look to the world to come for justice.
True faith would be to do the latter, at least if one takes Christ literally - or Paul for that matter. If I were living in the First Century and Saul before his conversion came to haul away MY children for torment and death I would have killed the evil jerk with my bare hands and considered it justice.
Jesus would not have considered it justice...maybe. Then again, maybe he would have. God did, after all, ultimately grant victory to the allies, and to the North over the South, and to the Christians over the Romans. But he also granted victory, in the East, to the Muslims over the Christians.
If you "Let go and let God", throughout history, you are very likely to see your children fed to the lions.
Now, perhaps everything is fine in the end, if we trust God they come through their ordeal martyrs and are happy in heaven, and the people who fed them to the lions are punished.
I don't trust God that much, and it is asking far too much of me to sit by, ably bodied, while the evil violently take over the world. So, with all due respect, Jesus, I WILL kill the enemies who are coming to kill me and mine. I will kill them if I can, and turn the violence back on them, destroy THEIR cities instead of letting them destroy mine, and turn back their evil. I will not turn the other cheek with regard to the armed robber and the human trafficker and the invader: I will violently destroy them, even though you said not to, and then I will ask you, Lord, to remember that you made me that way.
We should obey the Law of God and listen to our parents. But sometimes that will not work. When you're facing the Third Reich or your children fed to the lions, it is entirely too much to ask of me, Lord, to turn the other cheek and wait for your justice. Fight now. Kill the evil now. And after having done so, to protect mine, I will ask your forgiveness.
Obedience to a forgiving God is not worth letting the Axis win. You disobey God, kill the Nazis, and then repent of your disobedience and ask for forgiveness. He forgave Paul for murdering the innocent, he will forgive me for murdering the monsters and their innocent children also.
I hope that's true. If it's not, well, too bad for me: the Bible says... is not a strong enough argument to let the Axis or the Communists or the human traffickers or the drug lords, or Saul of Tarsus, win. I will not turn the other cheek to the murderers. I will kill them first. And God will forgive us for that, or not, either way, men have to do what they have to do, and the man who lets his family be killed is not a good shepherd. Neither would the God be who punished the man for defending them. I think God is good, therefore, I fully expect that he will forgive.
Sometimes you can't do what Jesus would do, because letting your family die and your country be conquered by monsters is not an acceptable option.