1 Corinthians 8:13 YLT

¹¹  and the brother who is infirm shall perish by thy knowledge, because of whom Christ died?

¹²  and thus sinning in regard to the brethren, and smiting their weak conscience -- in regard to Christ ye sin;

¹³  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.