However, not all [believers] have this knowledge. But some, being accustomed [throughout their lives] to [thinking of] the idol until now [as real and living], still eat food as if it were sacrificed to an idol; and because their conscience is weak, it is defiled (guilty, ashamed).

What then is my reward? [Just this:] that, when I preach the gospel, I may offer the gospel without charge [to everyone], so as not to take advantage of my rights [as a preacher and apostle] in [preaching] the gospel.

and drank the same spiritual drink [i.e., water coming from a rock supernaturally. See Ex. 17:6]. For they drank from the spiritual rock that followed them, and that rock was Christ. [Note: Besides actual water, they were refreshed from the spiritual presence of Christ].

Indeed, there must be actual parties among you, for so only will the men of real worth become known.