Since the resurrection of Jesus, a new age has dawned. The Kingdom of God is growing and spreading through Jesus' disciples in the hearts of all who believe in Christ. Hence, the present age is passing away and as it does, many false teachers and prophets have and will arise. In his letter, John warns his readers not to be deceived by these false teachers. They are instructed to insulate themselves from being deceived by remaining in the Word of God and the Holy Spirit that they received.