Do The Right Thing: Psalm 72:1-8

Justice is one of the main themes in this reading, and justice is one of the main themes of God in the Bible.
We find two words in the Old Testament to represent justice: sedaqa and mispat. These words represent both the legal and ethical stance of justice. Legal because it is the process of deciding a case in civil or religious government, and ethical because justice is the standard of equality in all people before the law.
Interestingly, in the Babylonian Code of Hammurabi, many of the laws presented there deal differently with different classes of people. We find the phrase 'elite male' repeated to possibly represent their different standing with the law. The Mosaic laws are one of the few, in theory, which holds all people in equality. It's important here to say 'in theory'.

The terms used for justice are also linked with judgement. While we might want to shy away from the idea of judgement because, well, it conjures up images of people judging us, this isn't the best way to understand how the judgement of God is usually represented. The best examples would be the Minor Prophets.
Judgement was the acts of restoration, of righting past wrongs. That those who rob others would return what they have taken and that the wronged party would receive recompense.

Justice is part of the very nature of God.
In Isaiah we are told that whole communities will be judged on their treatment of the poor and oppressed (Isa 1:16-17; 3:15) and is the chief requirement of Gods people according to Micah: What does the Lord require of you but to do justice, and to love kindness, and to walk humbly with your God? (Mic 6:8)