And he sent young men of the children of Israel, who offered burnt offerings, and sacrificed peace offerings of oxen unto the LORD.
Read Chapter 24
George Leo Haydock
Holocausts: whole burnt-offerings: in which the whole sacrifice was consumed with fire, upon the altar. (Challoner)
It is not said that these young men were to officiate as priests. Moses acted alone in this capacity, pouring the blood.
Calves, and he-goats also, Hebrews ix. 19. The book was also sprinkled with the blood (Calmet) mixed with water; for which purpose scarlet wool and hyssop were employed, as St. Paul learnt from tradition, or by inspiration. (Haydock)