1 Peter 4:5

Peter reminded his readers that God would condemn their unsaved friends’ behavior. Consequently they should not return to it. The Judge was already "ready" to judge (cf. Daniel 3:15 [LXX]; Acts 21:13; 2 Corinthians 12:14). Peter viewed those who slander Christians for their lifestyles as really slandering God, who called us out of darkness into the light.