Since it is a righteous thing with God to repay affliction to those who afflict you,
With the angels of his power ... Here is another reason for seeing this as a glimpse of the final judgment.  A vast number of angels are usually associated with Christ in New Testament references to the judgment.  This is true even in the parables  (Matthew 13:39,49).  For fuller study of angels, see my Commentary on Hebrews, p. 35.