The (second) imperative demands alertness of mind and so attentiveness to what is happening around you. It contrasts with tiredness and sleepiness (Matthew 26:40–41). The context of these two commands is the fiery trial
; the reason for the two imperatives is the presence of the devil.
8 Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour.