Job 31:40 (KJV)

What does Job 31:40 mean?

Job 31:40 describes Job’s wish that if he is guilty of wrongdoing, his land should produce worthless weeds instead of valuable crops, and then states that Job’s words are finished. Job is declaring his innocence and sealing his long speech with a kind of self-curse, inviting disaster if he has lied.

Job is speaking directly, finishing his long defense before his friends and before God. By mentioning thistles and cockle growing instead of wheat and barley, Job uses familiar images of failed crops to show the seriousness of his oath. The verse marks the end of Job’s personal arguments, closing a major section of the book.

The Hebrew behind Job 31:40

• תַּחַת (taḥat, “instead of”) and the crops: The contrast between “thistles” (קוֹצ kots, H2336) and “wheat” (חִטָּה ḥittah, H2406), and between “cockle” (בֹּשָׁה boshah, H890) and “barley” (שְׂעוֹרָה se’orah, H8184), highlights the reversal from blessing to curse. Job is saying that if he is guilty, his land should be cursed with useless, even harmful, plants.
• תַּמּוּ (tammu, H8552, “ended”): This word signals a formal conclusion. It tells the reader that Job’s speeches are over, marking a turning point in the book.

Why Job 31:40 matters

• Job 31:40 clarifies that Job is making a solemn oath, not just complaining or defending himself—he is willing to accept a curse if he is lying.
• The verse marks a structural shift in the book of Job, ending Job’s direct speeches and preparing for the next voices in the story.
• The agricultural imagery connects Job’s personal integrity to the well-being of his land, a common idea in the ancient world, making his oath vivid and concrete for his listeners.