John Gill's Exposition of the Whole Bible
Psalms 78:72
So he fed them according to the integrity of his heart,.... Or, "reigned over them", as the Targum; that is, over the people of Israel, and which he did in such manner as showed uprightness of heart, and that he was, as his character is, a man after God's own heart: it appeared, by his administration of government, that he sought not his own honour and interest, and the aggrandizing of his family, but the good of his people, and the glory of God; and this character, in the fullest extent, and highest sense of it, best agrees with Christ, the righteous branch raised unto David, Jeremiah 23:5,
and guided them by the skilfulness of his hands; or "by the prudencies" of his hands, as the Targum; or, by the prudencies c, as in the original text; with the most consummate wisdom and skill: hands are made mention of, partly in allusion to the shepherd, as David had been, who carries a staff in his hand, and guides his flock with it; and partly with respect to the acts and administration of government, which were wisely performed by him: he made wise laws for his people and soldiers, and put them in execution; he behaved wisely in the court and in the camp; but was greatly and infinitely exceeded by his antitype, the servant of the Lord, that should deal prudently, Isaiah 52:13, and who is abundantly qualified for it, as being not only the Wisdom of God, and the all wise God, but even, as Mediator, has the spirit of wisdom on him, and the treasures of wisdom in him.
c בתבונות "prudentiis", Vatablus; "intelligentiis", Pagninus, Montanus, Gejerus, Michaelis; "discretions", Ainsworth.