55:9-11 Specifically David wanted God to confuse the person responsible for his suffering. His opposition had resulted in confusion in the city that may have been Jerusalem. The manifestations of this confusion were violence, strife, iniquity, mischief, destruction, oppression, and deceit.
55:12 Such antagonism would have been easier for David to bear had it come from someone he disliked. However his adversary had been an intimate friend who had now stabbed him in the back.
55:13-14 David addressed his former friend. Not only had they been good friends, they had also shared their deepest commitments in life as their worshipping together indicates.
55:15 David called down God's judgment on his former friend and his ungodly allies. By opposing David, this traitor was also opposing God since David was the Lord's anointed. As he had deceived David by his treachery, so God should deceive him by putting him to death. Going down alive to the grave pictures a violent rather than a peaceful death.