Parashat Tetsave (You shall command)
Moses appears in the Torah since he is born in all the parashot but in this one.
Some explanations were given.
This section is read close the day of his death Adar 7th.
G-d listened to Moses' request to be erased from his book after the episode of the Golden Calf.
Or because all this section deals with the garments of the High Priest and Moses was not permitted to be High Priest.
I think the right question to ask is not why but what. What do we do with the fact that the leader is missing?
With the same Hebrew letters we form the word Tetsave, we can form the word Tzavta, unity.
When there is no leadership, stop arguing and get together.
In memory of my beloved mother and teacher Miriam Rachel bat Israel Itzchak Z"L