“And why are their faces not identical? So that a man not see a beautiful house or a beautiful woman and say “It is mine.” As it is written, “And he will withhold from the wicked their light, and shatter an upraised arm.”
Rashi:
“And say ‘It is mine.'” And no one could contradict him,
for there would be no way to distinguish between them.
“”And he will withhold from the wicked their light.” The shine of his face’s countenance. And because of this, that the lights of their countenances will not be identical to those of their fellows, “He will shatter an upraised arm,” for he cannot say “It is mine.”