2 Kings 10:15-16

He went on from there and came upon Jehonadab the Recabite who was on his way to meet him. Greeting him, he said, “Are we together and of one mind in this?” Jehonadab said, “We are—count on me.” “Then give me your hand,” said Jehu. They shook hands on it and Jehonadab stepped up into the chariot with Jehu. “Come along with me,” said Jehu, “and witness my zeal for GOD.” Together they proceeded in the chariot.