1 Corinthians 8:12 in the World English Bible
Thus, sinning against the brothers, and wounding their conscience when it is weak, you sin against Christ.
Context
11 And through thy knowledge shall the weak brother perish, for whom Christ died?
12 But when ye sin so against the brethren, and wound their weak conscience, ye sin against Christ.
13 Wherefore, if meat make my brother to offend, I will eat no flesh while the world standeth, lest I make my brother to offend.