1 Corinthians 9:9 For it is written in the law of Moses, "You shall not muzzle an ox while it treads out the grain." Is it for the oxen that God cares, (WEB KJV WEY ASV DBY WBS YLT NAS RSV NIV)
1 Timothy 5:18 For the Scripture says, "You shall not muzzle the ox when it treads out the grain." And, "The laborer is worthy of his wages." (WEB KJV WEY ASV DBY WBS YLT NAS RSV NIV)
Deuteronomy 25:4 You shall not muzzle the ox when he treads out the grain. (WEB KJV JPS ASV DBY WBS YLT NAS RSV NIV)
Psalms 39:1 {To the chief Musician, to Jeduthun. A Psalm of David.} I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a muzzle, while the wicked is before me. (DBY NAS NIV)