15 And he departed thence, and found Jehonadab the son of Rechab [coming] to meet him; and he greeted him, and said to him, Is thy heart right, as my heart is with thy heart? And Jehonadab said, It is.—If it be, give [me] thy hand.—And he gave [him] his hand; and [Jehu] took him up to him into the chariot, 16 and said, Come with me, and see my zeal for Jehovah. So they made him ride in his chariot. 17 And he came to Samaria, and smote all that remained to Ahab in Samaria, until he had destroyed him, according to the word of Jehovah which he spoke to Elijah.
18 And Jehu gathered all the people together, and said to them, Ahab served Baal a little: Jehu will serve him much. 19 And now call me all the prophets of Baal, all his servants, and all his priests: let none be wanting; for I have a great sacrifice [to do] to Baal; whoever shall be wanting shall not live. But Jehu did it in subtilty, in order that he might bring destruction upon the servants of Baal. 20 And Jehu said, Hallow a solemn assembly for Baal. And they proclaimed [it]. 21 And Jehu sent into all Israel; and all the servants of Baal came, so that there was not a man left that came not: and they entered into the house of Baal; and the house of Baal was full from one end to the other. 22 And he said to him that was over the wardrobe, Bring forth vestments for all the servants of Baal. And he brought them forth vestments. 23 And Jehu and Jehonadab the son of Rechab entered into the house of Baal, and said to the servants of Baal, Search, and see that there be here with you none of the servants of Jehovah, but the servants of Baal only.
Matthew Henry's Commentary on 2 Kings 10:15-23
Commentary on 2 Kings 10:15-28
(Read 2 Kings 10:15-28)
Is thine heart right? This is a question we should often put to ourselves. I make a fair profession, have gained a reputation among men, but, is my heart right? Am I sincere with God? Jehonadab owned Jehu in the work, both of revenge and of reformation. An upright heart approves itself to God, and seeks no more than his acceptance; but if we aim at the applause of men, we are upon a false foundation. Whether Jehu looked any further we cannot judge. The law of God was express, that idolaters were to be put to death. Thus idolatry was abolished for the present out of Israel. May we desire that it be rooted out of our hearts.