The left out Kohen[1]
ושחט את-בן הבקר לפני יקוק והקריבו בני אהרן הכהנים וגו’ ונתנו בני אהרן הכהן אש על-המזבח וערכו עצים על-האש
He will slaughter the cow before Hashem, and the Kohen sons of Aharon will offer it…and the sons of Aharon the Kohen will place a fire on the altar, arranging the wood on the fire[2]
As we begin the book of the Torah focused on the Temple service, it behooves us to pay attention to the many details listed. One nuance to pick up on is that all of the Temple service is described as being done by the Kohen sons of Aharon. However, one part of the service stands out. Regarding the arrangement of the wood on the altar pyre, the sons of Aharon are again described as the ones who perform this service. However, it doesn’t say that they are the Kohen sons of Aharon. Rather, it simply says they are the sons of Aharon, who himself was a Kohen. What are we to make of this inconsistency[3]?