Indeed, we, too, were once stupid, disobedient, and misled. We were slaves to many kinds of lusts and pleasures. We were mean and jealous. We were hated, and we hated each other.
Don’t be like Cain. He was a child of the evil one and murdered his brother. And why did Cain murder his brother? Because the things Cain did were evil and the things his brother did had God’s approval.