Job 31:6 - Albert Barnes' Notes on the Bible

Let me be weighed in an even balance - Margin, him weigh me in balances of justice. That is, let him ascertain exactly my character, and treat me accordingly. If on trial it be found that I am guilty in this respect, I consent to be punished accordingly. Scales or balances are often used as emblematic of justice. Many suppose, however, that this verse is a parenthesis, and that the imprecation in Job 31:8, relates to Job 31:5, as well as to Job 31:7. But most probably the meaning is, that he consented to have his life tried in this respect in the most exact and rigid manner, and was willing to abide the result. A man may express such a consciousness of integrity in his dealings with others, without any improper self-reliance or boasting. It may be a simple fact of which he may be certain, that he has never meant to defraud any man.