All nations compassed me about - They surrounded me; they hemmed me in on every side, so that I seemed to have no chance to escape. It would seem from this that the psalm was composed by someone who was at the head of the government, and whose government had been attacked by surrounding nations. This would accord well with many things that occurred in the life of David; but there were also other times in the Jewish history to which it would be applicable, and there is nothing that necessarily confines it to the time of David.
But in the name of the Lord will I destroy them - Margin, as in Hebrew,” cut them off.” This is the language which he used at that time; the purpose which he then formed; an expression of the confidence which he then cherished. He meant to subdue them; he had no doubt that he would be able to do it.