11For this is the message you have heard from the beginning, that we should love one another. 12We must not be like Cain who was from the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother's righteous.
9For this reason, since the day we heard it, we have not ceased praying for you and asking that you may be filled with the knowledge of God's will in all spiritual wisdom and understanding, 10so that you may lead lives worthy of the Lord, fully pleasing to him, as you bear fruit in every good work and as you grow in the knowledge of God.
20For all who do evil hate the light and do not come to the light, so that their deeds may not be exposed. 21But those who do what is true come to the light, so that it may be clearly seen that their deeds have been done in God."