Justice simply means rewarding the good and punishing wicked people.
Is there justice in this world? It seems that the world is unfair to us Christians because we are always wronged but no one punishes those wicked people. I believe that God is always at work by seeing His justice done, and we just have to wait and endure.
Matthew 5:44
But I tell you to love your enemies and pray for anyone who mistreats you.
Then you will be acting like your Father in heaven. He makes the sun rise on both good and bad people. And he sends rain for the ones who do right and for the ones who do wrong.
If you love only those people who love you, will God reward you for that? Even tax collectors love their friends.
If you greet only your friends, what’s so great about that? Don’t even unbelievers do that?
But you must always act like your Father in heaven.
So, be glad when you suffer for Christ’s sake because there will be a great reward waiting for you.
Romans 8:17
Since we are his children, we will possess the blessings he keeps for his people, and we will also possess with Christ what God has kept for him; for if we share Christ’s suffering, we will also share his glory.