Matthew 27:26

And when he had scourged Jesus— The Romans usually scourged the criminals whom they condemned to be crucified: this was the reason why Pilate ordered our Lord to be scourged, before he delivered him to the soldiers to be crucified. St. Matthew and St. Mark insinuate, that the scourging was performed on the pavement; for they tell us that, after it was over, the soldiers took Jesus into the praetorium, and mocked him; we may therefore suppose that the priests and the multitude required the governor to scourge him openly in their sight, and that he, to pacifythem, consented, contrary to his inclination; which, as he believed Jesus to be innocent, must have led him to shew him all the favour in his power; and probably he thought that this previous punishment would have excited the pity of the Jews, and have prevented the crucifixion of Jesus. See Elsner and Wetstein.