15 When he had departed from there, he met Jehonadab the son of Rechab coming to meet him. He greeted him, and said to him, “Is your heart right, as my heart is with your heart?”
Jehonadab answered, “It is.”
“If it is, give me your hand.” He gave him his hand; and he took him up to him into the chariot. 16 He said, “Come with me, and see my zeal for Yahweh.” So they made him ride in his chariot. 17 When he came to Samaria, he struck all who remained to Ahab in Samaria, until he had destroyed him, according to the word of Yahweh, which he spoke to Elijah.
18 Jehu gathered all the people together, and said to them, “Ahab served Baal a little; but Jehu will serve him much. 19 Now therefore call to me all the prophets of Baal, all of his worshippers, and all of his priests. Let none be absent; for I have a great sacrifice to Baal. Whoever is absent, he shall not live.” But Jehu did it in subtlety, intending that he might destroy the worshippers of Baal. 20 Jehu said, “Sanctify a solemn assembly for Baal!”
They proclaimed it. 21 Jehu sent through all Israel; and all the worshippers of Baal came, so that there was not a man left that didn’t come. They came into the house of Baal; and the house of Baal was filled from one end to another. 22 He said to him who was over the vestry, “Bring out robes for all the worshippers of Baal!”
He brought robes out to them. 23 Jehu went with Jehonadab the son of Rechab into the house of Baal. Then he said to the worshippers of Baal, “Search, and look that there are here with you none of the servants of Yahweh, but the worshippers 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.