12:31 prince of this world. The “prince of this world” is Satan (John 14:30; 16:11). See also II Corinthians 4:4; I John 5:18; Ephesians 2:2. The “now” of which Christ speaks refers to the assurance of ultimate victory over Satan that would be won at the cross (Colossians 2:14-15) and empty tomb (Revelation 1:18; Matthew 16:18).