And David reigned over all Israel
Not only over Judah, but over all the tribes of Israel, and over the whole land of Canaan, as promised to Abraham, ( Genesis 15:18 ) ; reaching to the river Euphrates, as Syria did, now conquered by David:
and David executed judgment and justice unto all his people;
when he returned from his wars, he heard and tried all causes impartially, brought before him, and gave sentence according to the law of God, and administered righteous judgment without any respect to persons; all had justice done them that applied unto him, whether high or low, rich or poor; and indeed during his wars he was not negligent of the civil government of his subjects, and the distribution of justice to them by proper officers, in which he was a type of Christ; see ( Isaiah 11:5 ) ( Jeremiah 23:5 Jeremiah 23:6 ) .