Matthew Poole and continuators on Psalms 78:72

72 So he fed them according to the integrity of his heart; and guided them by the skilfulness of his hands .

He commends David for the now necessary ingredients of a good Prince. 1. Integrity, whereby he sincerely sought the good and welfare of his people, avoiding and abhorring or those counsels and courses which were contrary thereunto. 2. Skillfulness; whereby he managed all the publick affairs with singular prudence; which is here ascribed to his hands, not because it was seated in them, but because it was acted and discovered by them, and appeared in all his actions or administrations.