" God knows how to bring justice in your life. It may not happen overnight, but it will happen.
We all go through situations in which we are treated unfairly. Maybe somebody is gossiping about you, or picking on you, trying to make you look bad at school or work. The natural response is to defend yourself or strike back. Human nature wants to get revenge. We like to get even. But the Lord says, “Vengeance is Mine” (Deuteronomy 32:35 NKJV). That means God will make your wrongs right. God wants to repay you for every unfairness. He is a God of justice.
The bottom line is this: God wants you to have the last laugh.
Here’s how it can happen. Romans 12:19 says to never avenge yourselves, but to let God do it. Notice, you can avenge yourself, or you can let God be your avenger; but you cannot have it both ways.
If you take matters into your own hands, God will step back and say, “You go ahead. You don’t need My help.” But if you learn to stay on the high road, control your emotions, and let God be your avenger, He will show up and say, “All right. Let Me go to work. "

― Joel Osteen , Every Day a Friday: How to Be Happier 7 Days a Week