Jamieson, Fausset and Brown on Job 1:7

7. going to and fro--rather, "hurrying rapidly to and fro." The original idea in Arabic is the heat of haste (Mt 12:43; 1Pe 5:8). Satan seems to have had some peculiar connection with this earth. Perhaps he was formerly its ruler under God. Man succeeded to the vice royalty (Ge 1:26; Psa 8:6). Man then lost it and Satan became prince of this world. The Son of man (Psa 8:4)--the representative man, regains the forfeited inheritance (Re 11:15). Satan's replies are characteristically curt and short. When the angels appear before God, Satan is among them, even as there was a Judas among the apostles.