One man hath faith to eat all things: but he that is weak eateth herbs.
It is good not to eat flesh, nor to drink wine, nor (to do anything) whereby thy brother stumbleth.
To the weak I became weak, that I might gain the weak: I am become all things to all men, that I may by all means save some.
Who is weak, and I am not weak? who is caused to stumble, and I burn not?