And his servants arose
 This was after he had slain Zechariah the son of Jehoiada, who reproved him for his idolatry; and after a second expedition of the king of Syria, who came to Jerusalem, and spoiled it, and left Jehoash diseased, as is recorded in (  2 Chronicles 24:23-26 ) , 
 and made a conspiracy;
 not to get the kingdom into their hands, for his son succeeded him, but to avenge the death of Zechariah; 
 and slew Jehoash in the house of Millo, which goeth down to Silla;
 these are both names of places; perhaps the latter is mentioned, to distinguish this Bethmillo from Millo in Zion; or rather that itself is meant, and described by the descent from it to a causeway, as Silla may signify, which led to the royal palace.