Exodus 24:5 in the King James Version
And he sent young men of the children of Israel, which offered burnt offerings, and sacrificed peace offerings of oxen unto the LORD.
Context
4 Moses wrote all the LORD’s words, then rose up early in the morning and built an altar at the base of the mountain, with twelve pillars for the twelve tribes of Israel.
5 He sent young men of the children of Israel, who offered burnt offerings and sacrificed peace offerings of cattle to the LORD.
6 Moses took half of the blood and put it in basins, and half of the blood he sprinkled on the altar.