Therefore take unto you now seven bullocks, and seven rams,.... Creatures used in sacrifice before the giving of the Levitical law, Ge 4:4; and the same number of the same creatures were offered by Balaam in the country of Moab, not far from where Job lived, nor at any great distance of time from his age, Nu 23:1; and among the Gentiles in later times .
And these were typical of Christ, being strong creatures, especially the bullocks, and which were used for labour; and the number seven may point at the perfection of Christ's sacrifice; to which these men were directed in their sacrifices to look for the complete atonement of their sins: now though they were not at their own dwellings, and could not take these out of their own herds and flocks, and Job had none, yet they could purchase them of others; and which having done, they are bid to do as follows:and go to my servant Job, and offer up for yourselves a burnt offering; that is, by Job, who was to offer it for them in their name, and at whose hands the Lord would accept it, and for his sake.