1 Corinthians 8:12

But when ye sin so against the brethren, and wound their weak conscience, ye sin against Christ.
— 1 Corinthians 8:12, King James Version

In other translations

World English Bible (WEB)

Thus, sinning against the brothers, and wounding their conscience when it is weak, you sin against Christ.

American Standard Version (ASV)

And thus, sinning against the brethren, and wounding their conscience when it is weak, ye sin against Christ.

Young's Literal Translation (YLT)

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