1 Kings 1:8

1:8 But Zadok the priest, Benaiah son of Jehoiada, Nathan the prophet, Shimei, Rei, and David’s elite warriors did not ally themselves with Adonijah.

1 Kings 1:32

1:32 King David said, “Summon Zadok the priest, Nathan the prophet, and Benaiah son of Jehoiada.” They came before the king,

1 Kings 1:36

1:36 Benaiah son of Jehoiada responded to the king: “So be it! May the Lord God of my master the king confirm it!

1 Kings 2:35

2:35 The king appointed Benaiah son of Jehoiada to take his place at the head of the army, and the king appointed Zadok the priest to take Abiathar’s place.

1 Kings 2:46

2:46 The king then gave the order to Benaiah son of Jehoiada who went and executed Shimei.

So Solomon took firm control of the kingdom.