In Matthew 24:14, it is stated that the Gospel of the Kingdom will be preached to all nations before the end comes. Stephen emphasizes the urgency of understanding and living the Gospel of the Kingdom, which is fundamentally about recognizing Jesus as the King. The Kingdom is spiritual, characterized by righteousness, peace, and joy in the Holy Spirit, rather than materialistic pursuits. Repentance is necessary to enter this Kingdom, as it requires submission to Christ's kingship. Stephen explains that the Kingdom is not of this world, and its nature is revealed through the parables of Jesus, particularly the parable of the sower, which illustrates different heart conditions towards the Gospel. The true sons of the Kingdom are those who receive the Word and allow it to transform their lives. Stephen also discusses the importance of discipleship, highlighting that being a disciple means following Christ and being molded by Him. The Sermon on the Mount presents the character of the Kingdom, emphasizing that true righteousness comes from the work of the Holy Spirit in believers' lives. Ultimately, the Kingdom is about living under Christ's rule and being witnesses to the world, hastening His return.