Verse 1
1) "And he shewed me a pure river of water of life," (kai edeiksen moi potamon hudatos zoes) "And he showed (to me) a river of water of life," not a river of dead-water, saltwater, or polluted water, but one that would sustain life. Note Ezekiel’s vision of holy waters, Ezekiel 47:1-9, and Zechariah’s, Zechariah 14:8; Psalms 36:7-9.
2) "Clear as crystal," (lampron hos krustallon) "Lamp bright or brilliant as crystal," indicating life, purity, and vitality. It is beyond all possibility of pollution or contamination, Revelation 7:17.
3) "Proceeding out of the throne of God," (ekporeuomenon ek tou thronou tou theou) "Flowing out from the throne of God," having its life-source sustained out of or from the throne of God, in and from the temple area of the Holy City, New Jerusalem, from the 1,500 square mile city, cubicle in construction, Revelation 21:6.
4) "And of the Lamb," (kai tou arniou) "And of the Lamb," sustained in its life-giving-flow also of, by, out of, and from the Lamb of God, who too is the temple thereof, Revelation 21:22; Revelation 4:2-3.
The Bible begins with a river in Eden, made up of four branches from it - - (Pison, Gihon, Hiddekel, Tigris), and the Euphrates, Genesis 2:10-14. It ends with one grand river of sparkling waters, clear waters, pure waters of Eternal life-giving nature.