And they arose
 Before they slew and ate the passover: 
 and took away the altars that were in Jerusalem;
 which Ahaz had set up in every corner of Jerusalem, to offer sacrifices upon, ( 2 Chronicles 28:24 ) 
 and all the altars for incense took they away;
 for as there were some to offer sacrifices on, there were others to burn incense upon, not to the Lord, but to idols, as the Targum adds: 
 and cast them into the brook Kidron;
 having reduced them to dust and ashes, see ( 2 Chronicles 29:16 ) .