but brother with brother doth go to be judged, and this before unbelievers!

wherefore, if victuals cause my brother to stumble, I may eat no flesh -- to the age -- that my brother I may not cause to stumble.

and concerning Apollos our brother, much I did entreat him that he may come unto you with the brethren, and it was not at all his will that he may come now, and he will come when he may find convenient.