Revelation 19:12: "His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself."
Revelation 19:16: "On his robe and on his thigh he has a name written, King of kings and Lord of lords."
Hebrews 2:9: "But we see him who for a little while was made lower than the angels, namely Jesus, crowned with glory and honor because of the suffering of death, so that by the grace of God he might taste death for everyone."
Revelation 5:11-14: "11 Then I looked, and I heard around the throne and the living creatures and the elders the voice of many angels, numbering myriads of myriads and thousands of thousands, 12 saying with a loud voice, 'Worthy is the Lamb who was slain, to receive power and wealth and wisdom and might and honor and glory and blessing!' 13 And I heard every creature in heaven and on earth and under the earth and in the sea, and all that is in them, saying, 'To him who sits on the throne and to the Lamb be blessing and honor and glory and might forever and ever!' 14 And the four living creatures said, 'Amen!' and the elders fell down and worshiped."
Philippians 2:9-11: "9 Therefore God has highly exalted him and bestowed on him the name that is above every name, 10 so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, 11 and every tongue confess that Jesus Christ is Lord, to the glory of God the Father."
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The text is public domain:
Crown Him with many crowns,
The Lamb upon His throne;
Hark how the heav'nly anthem drowns
All music but its own.
Awake, my soul, and sing
Of Him who died for thee,
And hail Him as thy matchless king
Through all eternity.
Crown Him the virgin's Son,
The God incarnate born,
Whose arm those crimson trophies won
Which now His brown adorn:
Fruit of the mystic rose,
Yet of that rose the stem,
The root whence mercy ever flows,
The babe of Bethlehem.
Crown Him the Lord of love.
Behold His hands and side,
Rich wounds, yet visible above,
In beauty glorified.
No angels in the sky
Can fully bear that sight,
But downward bend their wond'ring eyes
At mysteries so bright.
Crown Him the Lord of life,
Who triumphed o'er the grave
And rose victorious in the strife
For those He came to save.
His glories now we sing,
Who died and rose on high,
Who died eternal life to bring
And lives that death may die.
Crown Him the Lord of heav'n,
Enthroned in worlds above,
Crown Him the king to whom is giv'n
The wondrous name of Love.
Crown Him with many crowns
As thrones before Him fall;
Crown Him, ye kings, with many crowns,
For He is king of all.
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Both Revelation 19:12 and Hebrews 2:9 mention a crown ("diadems" in Revelation), and they seem to be the primary texts for the hymn. Every verse (and every other line of the last verse) begins with "Crown Him...."
"The wondrous name of Love" in the fifth verse likewise seems to combine Revelation 19:12 ("a name written that no one knows but himself"), Revelation 19:16 ("a name written, King of kings and Lord of lords"), and Philippians 2:9 ("the name that is above every name"). The title "matchless king" in the first verse is also drawn from "King of kings" in Revelation 19:16.
The second half of Hebrews 2:9 ("by the grace of God he might taste death for everyone") appears in the first verse ("Awake, my soul, and sing / Of Him who died for thee") and the fourth verse.
The text from Revelation 5 appears in the last two verses. It shows up a bit in "His glories now we sing" in the fourth verse, but it's more apparent in "Crown Him the Lord of heav'n, / Enthroned in worlds above" in the fifth verse.
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"The root whence mercy ever flows" in the second verse seems to be a reference to Isaiah 11:10: "In that day the root of Jesse, who shall stand as a signal for the peoples - of him shall the nations inquire, and his resting place shall be glorious."
"Behold His hands and side" in the third verse is taken from John 20, specifically verse 27: "Then he [Jesus] said to Thomas, 'Put your finger here, and see my hands; and put out your hand, and place it in my side. Do not disbelieve, but believe.'"
The language of victory over the grave in the fourth verse also recalls 1 Corinthians 15:54-57: "54 When the perishable puts on the imperishable, and the mortal puts on immortality, then shall come to pass the saying that is written: 'Death is swallowed up in victory.' 55 'O death, where is your victory? O death, where is your sting?' 56 The sting of death is sin, and the power of sin is the law. 57 But thanks be to God, who gives us the victory through our Lord Jesus Christ."
