RobH_en_tn/job/31/30.md

Indeed, I have not even allowed my mouth to sin

Here "my mouth" represents Job speaking. Alternate translation: "Truly I did not let myself sin" or "Truly, I did not sin" (See: rc://en/ta/man/translate/figs-synecdoche)

by asking for his life with a curse

Here "asking for his life with a curse" represents cursing someone's life so that he will die. Alternate translation: "by cursing him so that he would die" or "by cursing his life" (See: rc://en/ta/man/translate/figs-metonymy)