He sent young men - Stout, able, reputable young men, chosen out of the different tribes, for the purpose of killing, flaying, and offering the oxen mentioned here.
Burnt-offerings - They generally consisted of sheep and goats, Lev 1:10. These were wholly consumed by fire.
Peace-offerings - Bullocks or goats; see Heb 9:19. The blood of these was poured out before the Lord, and then the priests and people might feast on the flesh.