GOD'S WORD® Translation
When you sin against other believers in this way and harm their weak consciences, you are sinning against Christ.

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

Berean Study Bible
By sinning against your brothers in this way and wounding their weak conscience, you sin against Christ.

Douay-Rheims Bible
Now when you sin thus against the brethren, and wound their weak conscience, you sin against Christ.

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

King James Bible
But when ye sin so against the brethren, and wound their weak conscience, ye sin against Christ.

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

Young's Literal Translation
and thus sinning in regard to the brethren, and smiting their weak conscience -- in regard to Christ ye sin;

1 Corinthians 8:12 Additional Translations ...