Numbers 2:18

¹⁸ On the west side shall be the standard of the camp of Ephraim according to their hosts: and the prince of the children of Ephraim shall be Elishama the son of Ammihud.

Strange fire

The 'strange fire' in Leviticus 10:1 signifies love of self and the world with its accompanying lust. This is a hellish love.