Andrew of Caesarea
The smoke of torment signifies either the breath that rises from below with weeping from those being tormented, or the smoke from the fire in which the apostates burn.
"The smoke rises unto the ages of ages." From this it is clear that the torments of sinners are endless, as is the blessedness of the righteous.
"And they have no rest day or night." Day and night are mentioned not because the course of the future age will be measured by the sun, and sinners will then have no rest.
Rather, it is either according to the present custom of measuring time by days and nights, or because day signifies the eternal life of the saints, and night the torments of sinners.
These torments will rightly overtake all who formed in themselves the image of the beast by their devilish deeds and blasphemy against Christ, and who wrote the dishonorable name of the beast in their heart.