Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.
The gathering of the world-kings with the beast against the Lamb presages Christ's coming; therefore He here gives the charge to be watching for His coming, clothed in the garments of justification and sanctification.
Thief - (Matthew 24:43; 2 Peter 3:10.)
They - saints and angels.
Shame - `unseemliness' х ascheemosuneen (G808), 1 Corinthians 13:5; different from Revelation 3:18, aischunee (G152)].