This poem is an example of a Nonet. A nonet starts out with nine syllables, and each line has one less syllable than the one before until you work your way down to only one syllable. Rhyming is optional.
Celestial city with streets of gold
in Holy Scripture is foretold
blessed land I long to see
home for my soul, set free
by my Savior’s
Rev 21:10 And he carried me away in the spirit to a great and high mountain, and shewed me that great city, the holy
Jerusalem, descending out of heaven from God, Rev 21:11 Having the glory of God: and her light was like unto a stone most precious, even like a jasper stone, clear as crystal; Rev 21:12 And had a wall great and high, and had twelve gates, and at the gates twelve angels, and names written thereon, which are the names of the twelve tribes of the children of
Israel: Rev 21:13 On the east three gates; on the north three gates; on the south three gates; and on the west three gates. Rev 21:14 And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb. Rev 21:15 And he that talked with me had a golden reed to measure the city, and the gates thereof, and the wall thereof. Rev 21:16 And the city lieth foursquare, and the length is as large as the breadth: and he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal. Rev 21:17 And he measured the wall thereof, an hundred and forty and four cubits, according to the measure of a man, that is, of the angel. Rev 21:18 And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass. Rev 21:19 And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald; Rev 21:20 The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst. Rev 21:21 And the twelve gates were twelve pearls; every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass. Rev 21:22 And I saw no temple therein: for the Lord God Almighty and the Lamb are the temple of it. Rev 21:23 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. Rev 21:24 And the nations of them which are saved shall walk in the light of it: and the kings of the earth do bring their glory and honour into it. Rev 21:25 And the gates of it shall not be shut at all by day: for there shall be no night there. Rev 21:26 And they shall bring the glory and honour of the nations into it. Rev 21:27 And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb’s book of life.
(AMP) But, on the contrary, as the Scripture says, What eye has not seen and ear has not heard and has not entered into the heart of man, [all that] God has prepared (made and keeps ready) for those who love Him [who hold Him in affectionate reverence, promptly obeying Him and gratefully recognizing the benefits He has bestowed]. [Isa. 64:4; 65:17.]