casting all your worries on him, because he cares for you.
The sons of God were appearing before God in the book of Job, chapter one, and God --Satan also came with Him; and God said to Satan, Where have you been? And he said, Going to and fro throughout the earth, walking up and down in it. Here Peter tells us that your adversary, the devil, walking around like a roaring lion, just looking for whom he can devour. You have to be on guard. Be sober, be on guard and resist him.