How do we know God is a just king?

The throne of God is established upon righteousness, as indicated in Proverbs 16:12, which states that it is an abomination for kings to commit wickedness. This foundation shows God's unwavering justice and moral integrity. Unlike earthly rulers who may sometimes fail, God, being the ultimate authority, is perfect and just in all His judgments. All subjects of God's kingdom can have confidence in His justice as He justifies sinners and maintains law and order through His divine sovereignty. This assurance stems from His perfect nature and the truth proclaimed by His messengers.