"Give the king thy judgments, O God, and thy righteousness unto the king’s son. He shall judge thy people with righteousness, and thy poor with judgment.” (vv.1-2)
This Psalm was most likely written by David for his son Solomon, who would exceed him to the throne. In our text David prays for his son asking God to give him His wisdom (judgment), and His righteousness, that he may judge the people rightly. This portion of David’s prayer would be answered, as Solomon would indeed be known for his wisdom in judgment. But, there is another whom this psalm also speaks of. Someone Greater than David, and the kingdom He will establish that will usher in peace and prosperity - the Son of David, the son of Jesse, Jesus Christ (Luke 3:23-38).
Though Solomon’s reign was blessed, when Jesus reigns, He will bring; peace to the people and justice to the poor (v. 3). He will save the children of the needy, and will break into pieces the oppressor (v. 4). In His days prosperity will endure for 1,000 years (v. 7). He will have dominion from sea to sea, and from the river unto the ends of the earth (v.8). All kings will fall down before Him; All nations shall serve Him (v. 11). Men shall also be blessed in Him, and all nations shall call Him blessed (v.17). And on that day when Jesus comes again, the whole earth will be filled with His glory (v.19), and this psalm of the son of Jesse will be fulfilled.
The Truth: "For the earth will be filled with the knowledge of the glory of the LORD as the waters cover the sea.” (Habakkuk 2:14)