Romans 14:21

Again, he requires the greater alternative, that they should not only not force him, but even condescend to him. For he often did this himself also, as when he circumcised (Acts xvi. 3), when he was shorn (ib. xviii. 18), when he sacrificed that Jewish sacrifice. (ib. xxi. 26). And he does not say to the man "do so," but he states it in the form of a sentiment to prevent again making the other, the weaker man, too listless. And what are his words? "It is good not to eat flesh." And why do I say flesh? if it be wine, or any other thing of the sort besides, which gives offence, refrain. For nothing is so important as thy brother's salvation. And this Christ shows us, since He came from Heaven, and suffered all that He went through, for our sakes. And let me beg you to observe, how he also drives it home upon the other, by the words "stumbleth, or is offended, or is made weak." And do not tell me (he means) that he is so without reason but, that thou hast power to set it right. For the other has a sufficient claim to be helped in his weakness, and to thee this were no loss, not being a case of hypocrisy (Gal. ii. 13), but of edification and economy. For if thou force him, he is at once destroyed, and will condemn thee, and fortify himself the more in not eating. But if thou condescend to him, then he will love thee, and will not suspect thee as a teacher, and thou wilt afterwards gain the power of sowing imperceptibly in him the right views. But if he once hate thee, then thou hast closed the entrance for thy reasoning. Do not then compel him, but even thyself refrain for his sake, not refraining from it as unclean, but because he is offended, and he will love thee the more. So Paul also advises when he says, "It is good not to eat flesh," not because it was unclean, but because the brother is offended and is weak.