'Advantage' in the Bible

Now food will not commend us to God nor bring us close to Him; we are no worse off if we do not eat, nor are we better if we do eat.

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.

Let no one seek [only] his own good, but [also] that of the other person.

just as I please everyone in all things [as much as possible adapting myself to the interests of others], not seeking my own benefit but that of the many, so that they [will be open to the message of salvation and] may be saved.

Now, believers, if I come to you speaking in unknown tongues, how will I benefit you unless I also speak to you [clearly] either by revelation [revealing God’s mystery], or by knowledge [teaching about God], or by prophecy [foretelling the future, speaking a new message from God to the people], or by instruction [teaching precepts that develop spiritual maturity]?