And it came to pass, as soon as he had made an end of offering the burnt offering, that Jehu said to the guard and to the captains, Go in, and slay them; let none come forth. And they smote them with the edge of the sword; and the guard and the captains cast them out, and went to the city of the house of Baal. (2 Kings 10:25)
It is not clear whether Jehu personally offered this sacrifice, or whether it was done in his behalf by one of the priests of Baal. The Bible frequently speaks of individuals offering their sacrifices in the sense that they provided the victims and had them offered in their behalf (Lev. 3:7, 12; 1 Kings 8:63). The actual sacrifices were probably the priests of Baal.
The guard.
The royal bodyguard of the king. Up till this time it had been stationed outside, at the gate. Its presence would not create suspicion, since these soldiers always accompanied the king.
The city of the house of Baal.
The exact meaning of this expression is not clear. One of the Greek versions reads “inner shrine” for “city.” The following verse indicates that the soldiers did enter the inner shrine of the house of Baal. As they entered into the court they would naturally first slay the worshipers nearest to them, and after having killed those in the court, they would enter the building and ultimately the central shrine, there to complete their bloody work.