[9:33] 4 tn The participle מוֹכִיחַ (mokhiakh) is the “arbiter” or “mediator.” The word comes from the verb יָכַח (yakhakh, “decide, judge”), which is concerned with legal and nonlegal disputes. The verbal forms can be used to describe the beginning of a dispute, the disputation in progress, or the settling of it (here, and in Isa 1:18).
[9:33] sn The old translation of “daysman” came from a Latin expression describing the fixing of a day for arbitration.
[9:33] 7 sn The idiom of “lay his hand on the two of us” may come from a custom of a judge putting his hands on the two in order to show that he is taking them both under his jurisdiction. The expression can also be used for protection (see Ps 139:5). Job, however, has a problem in that the other party is God, who himself will be arbiter in judgment.