God blessed Jehu for eliminating the line of Ahab and Baalism. However, Jehu did not go far enough. He allowed the cult of Jeroboam to continue. Furthermore he was not careful to obey the Mosaic Law with all his heart (v. 31). Consequently God cut his line off eventually, and Israel lost much Transjordanian territory to Hazael, king of Aram.
"Despite his cometlike beginning, spiritually speaking, Jehu was a falling star, so his reign is largely passed over in silence."69
"Despite his attacks against Baalism, Jehu does not lead the nation into separatist Yahwism. He allows the worship instituted by Jeroboam to continue. In effect, then, he expels the foreign religion (Baalism) in favor of the long-standing Israelite state religion begun by Jeroboam. Apparently he believes reform beyond the elimination of Ahab's children, Ahab's wife, and Ahab's religion, that is, what secures his power, does not concern him. Indeed he acts as the instrument of punishment against the corrupt Omride dynasty, but he does not operate out of Elijah-like motives. Rather, he is, like Syria, Assyria, and Babylon, an instrument that punishes but exhibits few personalmoral strengths. Israel is now back to where it was before Ahab and Jezebel assumed leadership, but it has certainly not come back to the Lord."70
