'Oxen' in the Bible

Araunah said to David, "Let my lord the king take and offer up what seems good to him. Behold, the cattle for the burnt offering, and the threshing instruments and the yokes of the oxen for the wood:

The king said to Araunah, "No; but I will most certainly buy it from you for a price. I will not offer burnt offerings to Yahweh my God which cost me nothing." So David bought the threshing floor and the oxen for fifty shekels of silver.