'Oxen' in the Bible

Again he sent other slaves, saying, 'Tell those who have been invited, "Look! The feast I have prepared for you is ready. My oxen and fattened cattle have been slaughtered, and everything is ready. Come to the wedding banquet."'

Another said, 'I have bought five yoke of oxen, and I am going out to examine them. Please excuse me.'

He found in the temple courts those who were selling oxen and sheep and doves, and the money changers sitting at tables.

So he made a whip of cords and drove them all out of the temple courts, with the sheep and the oxen. He scattered the coins of the money changers and overturned their tables.

For it is written in the law of Moses, "Do not muzzle an ox while it is treading out the grain." God is not concerned here about oxen, is he?