'Bulls' in the Bible

It happened, when God helped the Levites who bore the ark of the covenant of Yahweh, that they sacrificed seven bulls and seven rams.

They sacrificed sacrifices to Yahweh, and offered burnt offerings to Yahweh, on the next day after that day, even one thousand bulls, one thousand rams, and one thousand lambs, with their drink offerings, and sacrifices in abundance for all Israel,