In the seventh year Jehoiada sent for the commanders of units of a hundred, the Carites1 and the guards and had them brought to him at the temple of the LORD. He made a covenant with them and put them under oath at the temple of the LORD. Then he showed them the king's son.
References for 2 Kings 11:4
He commanded them, saying, "This is what you are to do: You who are in the three companies that are going on duty on the Sabbath2--a third of you guarding the royal palace,3
References for 2 Kings 11:5
a third at the Sur Gate, and a third at the gate behind the guard, who take turns guarding the temple--
and you who are in the other two companies that normally go off Sabbath duty are all to guard the temple for the king.
Station yourselves around the king, each man with his weapon in his hand. Anyone who approaches your ranks must be put to death. Stay close to the king wherever he goes."
References for 2 Kings 11:8
The commanders of units of a hundred did just as Jehoiada the priest ordered. Each one took his men--those who were going on duty on the Sabbath and those who were going off duty--and came to Jehoiada the priest.
Then he gave the commanders the spears and shields4 that had belonged to King David and that were in the temple of the LORD.
References for 2 Kings 11:10
The guards, each with his weapon in his hand, stationed themselves around the king--near the altar and the temple, from the south side to the north side of the temple.
Jehoiada brought out the king's son and put the crown on him; he presented him with a copy of the covenant5 and proclaimed him king. They anointed6 him, and the people clapped their hands7 and shouted, "Long live the king!"8
References for 2 Kings 11:12