'Partnership' in the Bible

Yes, they have kindly done this, and, in fact, it was a debt they owed them. For seeing that the Gentiles have been admitted in to partnership with the Jews in their spiritual blessings, they in turn are under an obligation to render sacred service to the Jews in temporal things.

Do not come into close association with unbelievers, like oxen yoked with asses. For what is there in common between righteousness and lawlessness? Or what partnership has light with darkness?