2 Kings 10:15
And when he was departed thence, he lighted on Jehonadab the son of Rechab to meet him: and he saluted him, and said to him, Is thine heart right, as my heart with thy heart? And Jehonadab answered, It is. If it be, give thine hand. And he gave his hand; and he took him up to him into the chariot.

2 Kings 10:23
And Jehu went, and Jehonadab the son of Rechab, into the house of Baal, and said unto the worshippers of Baal, Search, and look that there be here with you none of the servants of the LORD, but the worshippers of Baal only.