Revelation 21:1-4 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea. And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God. And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
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My understanding is that this is a very old Waldensian hymn. The Waldenses, a Christian group long before the Protestant Reformation in Europe, were originally in Italy and were persecuted severely for not following the teachings of the Roman Catholic Church. I believe the book that I read was The History of the Waldenses by J . A. Wylie. I first read Paula the Waldensian by Eva LeComte years ago - a book I recommend.
Disclaimer on the website at the end of the video. I do not know this person and so cannot say one way or another as to his reliability. Use your own discretion.