All that he hath is in thy power; I give thee full power and liberty to deal with his wife, children, servants, and all his estate, whatsoever thy wit or malice shall prompt thee to do. Upon himself; his person, body or soul. From the presence of the Lord, i.e. from that place where God was represented as specially present, being forward and greedy to do the mischief which he had permission to do.
Related Commentaries of Job 1:12
Job 1:12
12 And the LORD said unto Satan, Behold, all that he hath is in thy power;f only upon himself put not forth thine hand. So Satan went forth from the presence of the LORD.