Numbers 2:3

³ And those that encamp on the east side toward the sunrising shall be they of the standard of the camp of Judah, according to their hosts: and the prince of the children of Judah shall be Nahshon the son of Amminadab.

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.