Psalms 68:21

But God shall wound the head of his enemies Of Satan, the old serpent, of whom it was, by the first promise, foretold, that the seed of the woman should bruise his head; and the heads of all the powers of the nations, whether Jews or Gentiles, that oppose him and his kingdom among men. Psalms 110:6, He shall wound the heads over many countries; of all those, whoever they are, that will not have him to reign over them. For these he accounts his enemies, and they shall be brought forth and slain before him, Luke 19:27. The hairy scalp, &c. This expression seems to refer to the custom prevalent with many, in ancient times, of wearing long shaggy hair, that their looks might be more terrible to their enemies. Of such a one as goeth on still in his trespasses And hates to be reformed. Christ looks on all such as his enemies, and will treat them accordingly. The original words here used have great emphasis, and imply, God shall strike deep, or exhaust the blood of the head of his enemies, that is, utterly destroy them. As if he had said, “He will avenge himself on their devoted heads; nor shall their strength or craft be able to protect them from his indignation.” For the head, and the hairy scalp, or crown, denote the principal part, the strength, the pride, and the glory of the adversary, which was to be crushed, according to the original sentence, Genesis 3:15. It is justly observed here by Dr. Horne, that this verse begins a prediction of that vengeance which the person who was “ascended on high would infallibly execute upon his impenitent enemies, and which was shadowed forth in the destruction of the enemies of Israel by David, after that the ark of God was placed upon the hill of Zion.”