2 Kings 10:15
15 And when he departed from there, he met xJehonadab the son of yRechab coming to meet him. And he greeted him and said to him, “Is your heart true to my heart as mine is to yours?” And Jehonadab answered, “It is.” Jehu said,1 “If it is, zgive me your hand.” So he gave him his hand. And Jehu took him up with him into the chariot.
2 Kings 11:4
Joash Anointed King in Judah
4 xBut in the seventh year yJehoiada sent and brought the captains of zthe Carites and of the guards, and had them come to him in the house of the Lord. And he made a covenant with them and put them under oath in the house of the Lord, and he showed them the king’s son.