Deuteronomy 22:10

You must not plow with an ox and a donkey harnessed together.

2 Corinthians 6:14-16

Do not become partners with those who do not believe, for what partnership is there between righteousness and lawlessness, or what fellowship does light have with darkness?

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 become partners with those who do not believe, for what partnership is there between righteousness and lawlessness, or what fellowship does light have with darkness?

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