The theme of justice is found throughout the entire biblical story.
When God's people were treated unjustly, God stepped in and showed them restorative justice just like he commanded them to show to others. Of course, the sad irony is that the Israelites would later go on to oppress others even after being oppressed themselves. Today, we as humans continue to demonstrate injustice, benefiting from the oppression of those around us and making ourselves guilty in the eyes of God.
Thankfully, God had a solution to the injustice of humanity. By sending Jesus to take the punishment for the sins of the guilty, God made it so that all people can stand righteous before him. Having been given this gift, it is now our commission to go out into the world and give this same gift to others by showing them the righteousness and justice that God has shown us.