Deuteronomy 22:10

Do not do your ploughing with an ox and an ass yoked together.

2 Corinthians 6:14-16

Do not keep company with those who have not faith: for what is there in common between righteousness and evil, or between light and dark?

Treasury of Scripture Knowledge

Summary

Thou shalt not plow with an ox and an ass together.

Two different species cannot associate comfortably together, nor pull pleasantly either in cart or plough; and the ass being lower than the ox, when yoked, he must bear the principal part of the weight

Bible References

Two different species cannot associate comfortably together, nor pull pleasantly either in cart or plough; and the ass being lower than the ox, when yoked, he must bear the principal part of the weight

2 Corinthians 6:14
Do not keep company with those who have not faith: for what is there in common between righteousness and evil, or between light and dark?

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain