Cross reference
Deuteronomy 22:10
10 `Thou dost not plow with an ox and with an ass together.
2 Corinthians 6:14-16
14 Become not yoked with others -- unbelievers, for what partaking `is there' to righteousness and lawlessness?
15 and what fellowship to light with darkness? and what concord to Christ with Belial? or what part to a believer with an unbeliever?
16 and what agreement to the sanctuary of God with idols? for ye are a sanctuary of the living God, according as God said -- `I will dwell in them, and will walk among `them', and I will be their God, and they shall be My people,