John Wesley on Numbers 16:37

To Eleazer - Rather than to Aaron, partly because the troublesome part of the work was more proper for him, and partly lest Aaron should be polluted by going amongst those dead carcasses; for it is probable this fire consumed them, as lightning sometimes doth, others, by taking away their lives, and leaving their bodies dead upon the place. Out of the burning - From among the dead bodies of those men who were burnt. Yonder - Far from the altar and sanctuary, into an unclean place, where the ashes were wont to be cast: by which God shews his rejection on of their services. They are hallowed - By God's appointment, because they were presented before the Lord by his express order, Nu 16:16,17.