John F. Walvoord preaches about the vision of the new heaven and the new earth in Revelation 21, emphasizing the eternal state where God dwells with His people in the holy city, the new Jerusalem. The description includes the absence of the sea, the new creation, and the beauty of the city with its foundations of precious stones and gates of pearl. The eternal city is illuminated by the glory of God and the Lamb, with continuous day and no need for the sun or moon. Only those whose names are written in the Lamb's book of life have access, ensuring a perfect environment of purity and eternal life.

T. Austin-Sparks emphasizes the immeasurable greatness, stability, and equality of God's love as symbolized by the New Jerusalem, a city described in Revelation. He explains that the city's dimensions represent the vastness of God's love, which surpasses human understanding and remains constant regardless of our circumstances. Sparks highlights that God's love is available to all, regardless of their background or status, and that it is unchanging and reliable, much like the mountains that stand firm over time. He encourages believers to recognize and accept this divine love, which will be the central theme of eternity. Ultimately, the sermon calls for a deeper appreciation of God's love, which is foundational to the Christian faith.