Moses is commanded to take a census of all Israel and then he’s told: But the tribe of Levi you shall not reckon, and their heads you shall not count in the midst of the Israelites. Moses was himself a Levite and the Midrash imagines his initial reaction. He assumed: maybe there is something wrong with my tribe that God does not wish them to be counted. Only later did he realize that it was a mark of distinction for God to exclude his tribe from the census. When we experience exclusion, like Moses, our natural instinct is to think there is something wrong with us, however it may just be that we’re being distinguished for some more noble purpose.