'Right' in the Bible

Have we no right to eat and to drink?

Have we no right to lead about a wife that is a believer, even as the rest of the apostles, and the brethren of the Lord, and Cephas?

Or I only and Barnabas, have we not a right to forbear working?

If others partake of this right over you, do not we yet more? Nevertheless we did not use this right; but we bear all things, that we may cause no hindrance to the gospel of Christ.

What then is my reward? That, when I preach the gospel, I may make the gospel without charge, so as not to use to the full my right in the gospel.