NET
8 Be sober and alert. Your enemy the devil, like a roaring lion, is on the prowl looking for someone to devour.
Darby
8 Be vigilant, watch. Your adversary [the] devil as a roaring lion walks about seeking whom he may devour.
KJV
8 Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour: