'Ox' in the Bible
"Tell the Israelis, "You are not to eat the fat of an ox, a lamb, or a goat.
an ox, a ram for a peace offering to sacrifice in the LORD's presence, and a grain offering with olive oil, because on that day the LORD will appear to you."
He slaughtered the ox and ram for the peace offering sacrifice on behalf of the people. Aaron's sons delivered the blood to him, which he poured on the altar and around it.
As to the fat from the ox and the ram the tail, the fat covering the kidneys, and the appendage of the liver
"Aaron is then to bring the bull for a sin offering for himself, thus making atonement for himself and his household. He is to slaughter the ox for himself.
He is to take blood from the ox and sprinkle it with his forefinger toward the surface of the Mercy Seat. Then he is to sprinkle the blood on the surface of the Mercy Seat with his forefinger seven times.
When a person from the house of Israel slaughters an ox, a lamb, or a goat (whether in the camp or outside the camp),
"No person is to consecrate the firstborn, because the firstborn of the animals already belongs to the LORD. Whether ox or goat, it belongs to the LORD.