In Isaiah, chapter sixty, verse nineteen, “The sun shall be no more thy light by day; neither for brightness shall the moon give light unto thee: but the LORD shall be unto thee an everlasting light, and thy God thy glory.” This verse looks forward to the Jerusalem of the new heaven and earth, in which God and the Lamb will be the everlasting light of His people, as in Revelation twenty-one, verse twenty-three. “And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof.” “And there shall be no more curse: but the throne of God and of the Lamb shall be in it; and his servants shall serve him: And they shall see his face; and his name shall be in their foreheads. And there shall be no night there; and they need no candle, neither light of the sun; for the Lord God giveth them light: and they shall reign for ever and ever.”
Sun and moon may still shine, but they shall not be needed in the radiance of the greater glory of the presence of Jehovah. Here on earth, the sun sets, and the moon wanes, but in that Divine glory, there is no waning and no setting. “Mourning” will belong to the past, and everlasting joy to the future.
Those who make God their only light shall have Him as their all-sufficient light. And the city will need no sun, or the moon to shine in it, for the glory of God did lighten it, and the Lamb is the light thereof. ‘And there shall be no night there; and they need no candle, neither light of the sun, for the Lord God giveth them light.’