Paul gives specific instructions on an orderly way to use gifts in the church.
# not for unbelievers, but for believers
This can be expressed positively and combined with the other positive statement. AT: "only for believers" (See: [[rc://en/ta/man/translate/figs-doublenegatives]] and [[rc://en/ta/man/translate/figs-parallelism]])
# would they not say that you are insane?
This can be a statement. AT: "they would say that you are insane." (See: [[rc://en/ta/man/translate/figs-rquestion]])