Jerome : "Ephraim has provoked me to anger with his bitter words; his blood will be on him, and his Lord will repay him for his contempt." Likewise Septuagint. Therefore when I had so helped Ephraim that I had led the naked, the exiled and the lonely to a rich and a masterful Lord, and had made him the parent of many sons, Ephraim deserted me, indeed provoked me to anger: and with his bitterness made bitter what was sweet. Whence his blood will come upon him, that is, he will be the cause of his own death, according to what David says to him who reported to him the death of Saul, and remembered that he had killed the king of Israel: "Your blood be upon your own head" (2 Kings 1:16). Not my opinion, but the blood of Saul (i.e. "Al" for Saul) will be spilled because of your blood. And what follows: "And the Lord will restore his reproach to him," is consistent with the meaning spoken by Nathan to David: "Because you have blasphemed the enemies of the Lord's name, because of this" (1 Kings 12), that is, because of this sin in which you killed Uriah, the blasphemy and reproach itself, by which the Lord was blasphemed, will be turned on your head. Always heretics provoke the merciful Lord to anger, and they who prefer the repentance of the sinner to death, force to punish the hardness of their own hearts, and their blood, with which they have shed both their own and that of many, will come upon their heads, and the reproaches with which they blasphemed the Lord, their Lord will restore to them, not because He is their Lord, but because He was once their Lord. — Commentary on Hosea 12:14