The question at hand is how God can be both just and faithful to His people if He is constantly moving history through redemption. One could argue that God is being unfair by taking back the riches of this world and turning the world upside down, but God is actually being just and faithful by doing so. Reason being, every single person in the world is completely dependent upon God and will therefore have to face His eternal justice.All humans are silenced before God because He is justified and does not lower His standards to act redemptively. Since the wicked become rich through theft, God must always be justified in His response. The Psalmist is not saying that God's justice is mysterious. Rather, this justice has been revealed to saints through the words that the world mocks.The author of the Psalm is responding to the difficult situation that the nation of God's people find themselves in. They are being treated unjustly by the rest of the world and the wicked are ignoring God's laws. By ignoring and cursing God, they are inviting His righteous judgement upon themselves. As God's people recite the curses that are written down, they are storing up judgement for the wicked. The people of God are victims of the wicked who are stealing from them.God has created all things and governs the earth through His providence, kindly providing for all of man's needs. God, who is free, has given man the freedom to rule the earth through His word. Instead of pronouncing God's ruling ability, the wicked misuse God's gifts in an unjust way. Because God rules the world through His word to creation, He has restored man's authority in pronouncing His justice in the law and in pronouncing His curses. The Psalmist is ruling over the wicked in this pronouncement.Psa 111:7 The works of his hands are faithful and just; all his precepts are trustworthy 8 They are steadfast for ever and ever, done in faithfulness and uprightness."