God WILL crush your enemies. It is a fact. All you have to do is believe. You may not see it happen and it might take months or years to happen, but it will happen. Some people call it Karma. It doesn't matter what you call it, the fact remains that God has your back. And I don't personally think He would consider someone who cut you off in traffic to be an enemy. I think it is someone who does something terrible to you for no good reason. Perhaps repeatedly.
Years ago I worked for a horrible boss. He was immature. He would spread rumors about his employees and plot them against one another. He was inappropriate and mean and underhanded. I finally reached a breaking point between him and a few others in my department and I got my bible out. I carried it to work every day. I started reading Psalms....Psalm 3 starts out "Lord, how many are my foes! How many rise up against me! .... Man could I relate to that.
Every day another Psalm and every day I felt more invincible. Some time passed and a colleague of mine arranged a meeting with our CEO to talk about our horrible boss. We laid it all out for him so he knew what we were working with. Afterward I felt free. Vindicated. And I felt sure that the meeting was the hand of God and that everything would be OK. Things calmed down after that and it wasn't long before I found a different job and moved on, but I will never forget the feeling that God had my back and He showed up for me at a time when I needed Him the most. After leaving there I learned that the CIO (my boss) eventually lost his job and struggled to find work. I didn't get to see it happen, but it happened.
Another story that comes to mind is about a father of 3 girls. He was abusive and basically made everyone feel like they owed him something. He lied and cheated on his wives (he had many) and treated them like dirt. Especially when they were pregnant with his children. This man has lived a life of despair. He has no real home to speak of and no real friends. He goes from job to job, mainly because he steals from all of his employers eventually. He feels unloved and depressed. His life has not been full. In fact it has been quite the opposite. An enemy to many, God continues to crush him.
It is not up to us to seek revenge or to retaliate when people wrong us. This is such a hard lesson to learn, but such a necessary one. It is not our job to realign the universe or to take action when a person lies about us or provokes us or takes credit for our work. Let God handle it. I am just a wimpy little girl. What can I really do? God created everything. We KNOW what He can do! I would rather move on and let it go and know that in time God will make it right. I have watched it happen and I believe with all my heart that God is working on my behalf at this very moment to produce the perfect outcome for me.
Arise, Lord! Deliver me, my God! Strike all my enemies on the jaw; break the teeth of the wicked. From the Lord comes deliverance. May your blessing be on your people. Psalm 3:7-8