13 For after all this punishment, the people will still not repent. They will not seek the Lord of Heaven's Armies. 14 Therefore, in a single day the Lord will destroy both the head and the tail, the noble palm branch and the lowly reed. 15 The leaders of Israel are the head, and the lying prophets are the tail. 16 For the leaders of the people have misled them. They have led them down the path of destruction.
Matthew Henry's Commentary on Isaiah 9:13-16
Commentary on Isaiah 9:8-21
(Read Isaiah 9:8-21)
Those are ripening apace for ruin, whose hearts are unhumbled under humbling providences. For that which God designs, in smiting us, is, to turn us to himself; and if this point be not gained by lesser judgments, greater may be expected. The leaders of the people misled them. We have reason to be afraid of those that speak well of us, when we do ill. Wickedness was universal, all were infected with it. They shall be in trouble, and see no way out; and when men's ways displease the Lord, he makes even their friends to be at war with them. God would take away those they thought to have help from. Their rulers were the head. Their false prophets were the tail and the rush, the most despicable. In these civil contests, men preyed on near relations who were as their own flesh. The people turn not to Him who smites them, therefore he continues to smite: for when God judges, he will overcome; and the proudest, stoutest sinner shall either bend or break.