A Mighty Disappointment
From least to most severe, there were three forms of flogging administered by the Romans: (1) the fustigatio, a beating given for smaller offenses such as hooliganism, often accompanied by a severe warning; (2) the flagellatio, a more brutal flogging to which criminals were subjected whose offenses were more serious; and (3) the verberatio, the most terrible form of this punishment, regularly associated with other reprisals such as crucifixion.
In the present instance, the flogging probably in view is the least severe form, the fustigatio, which was intended in part to appease the Jews and in part to teach Jesus a lesson. After the sentence of crucifixion, Jesus was scourged again, this time in the most severe form, the verberatio. This explains why Jesus was too weak to carry his own cross very far (see commentary at 19:17). Also, the nearness of the special Sabbath meant that the agony of crucifixion must be kept short in order not to interfere with religious festivities (19:31–33).
Tiberias, the reigning emperor, was notoriously bitter and suspicious of rivals. If such a report were sent to him, he would instantly end Pilate’s political career and probably his life, too (Tenney, EBC, p. 178).
John used a ‘Roman’ method of computing time, beginning the day with midnight and thus taking about the sixth hour to refer to 6.00 a.m.