What are the implications of the words "Tachtav mi'Banav"?
Rashi: This implies that, if the Kohen Gadol has a son, he should be chosen to succeed his father as Kohen Gadol. 1
And what are the implications of the words "ha'Kohen Tachtav mi'Banav"?
Rashi: It teaches us that the word "Kohen is not a simple noun, but means someone who serves. 1
What is the basic Pasuk coming to teach us?