1 Corinthians 9:9-10

For in the law of Moses it is written, "You must not muzzle an ox that is treading out your grain." Is it that God is concerned about oxen only?

Revelation 4:7

The first living creature was like a lion, the second was like an ox, the third had a face like a man's, and the fourth was like an eagle flying.

Treasury of Scripture Knowledge

Summary

And under it was the similitude of oxen, which did compass it round about: ten in a cubit, compassing the sea round about. Two rows of oxen were cast, when it was cast.

Bible References

And under

1 Corinthians 9:9
For in the law of Moses it is written, "You must not muzzle an ox that is treading out your grain." Is it that God is concerned about oxen only?
Revelation 4:7
The first living creature was like a lion, the second was like an ox, the third had a face like a man's, and the fourth was like an eagle flying.