King James Bible
Neither have I suffered my mouth to sin by wishing a curse to his soul.

New King James Version
(Indeed I have not allowed my mouth to sin By asking for a curse on his soul);

American Standard Version
(Yea, I have not suffered by mouth to sin By asking his life with a curse);

Berean Study Bible
I have not allowed my mouth to sin by asking for his life with a curse—

Douay-Rheims Bible
For I have not given my mouth to sin, by wishing a curse to his soul.

English Revised Version
(Yea, I suffered not my mouth to sin by asking his life with a curse;)

World English Bible
(yes, I have not allowed my mouth to sin by asking his life with a curse);

Young's Literal Translation
Yea, I have not suffered my mouth to sin, To ask with an oath his life.

Job 31:30 Additional Translations ...