"Hallelujah! For our Lord God Almighty reigns. Let us rejoice and be glad and give him glory! For the wedding of the Lamb has come, and his bride has made herself ready." (Revelation 19:6-7)
After the fall of Babylon, heaven erupts in praise. A great multitude cries hallelujah: salvation and glory and power belong to our God, for true and just are his judgments. And again: hallelujah! The four living creatures fall down and the twenty-four elders fall down and worship God on his throne. Then the roar of the great multitude, like rushing waters and loud thunder: Hallelujah! For our Lord God Almighty reigns. Let us rejoice and be glad and give him glory! For the wedding of the Lamb has come, and his bride has made herself ready. Fine linen, bright and clean, was given her to wear, which stands for the righteous acts of God's holy people.
The hallelujah chorus of Revelation 19 is the source and model of Handel's Hallelujah Chorus and of every Alleluia sung in Christian worship. The Catechism identifies the wedding of the Lamb as the eschatological image for the consummation of the Church's relationship with Christ: the whole of salvation history has been moving toward this moment, this marriage, this final union of the Bridegroom and his Bride (CCC 1602).
Then heaven opens and a white horse appears whose rider is called Faithful and True. His eyes are like blazing fire and on his head are many crowns. He is dressed in a robe dipped in blood and his name is the Word of God. The armies of heaven follow him on white horses. Out of his mouth comes a sharp sword with which to strike down the nations. On his robe and on his thigh is written: King of kings and Lord of lords. The beast and the kings of the earth gather to wage war against him. The beast is captured and the false prophet with it. They are thrown alive into the fiery lake of burning sulphur.
Brothers and sisters, the wedding has come and the bride has made herself ready. The fine linen she wears is the righteous acts of God's holy people. The bride does not show up in rags. She has been preparing, through every act of faithfulness, every sacrament received, every sacrifice made. Your life of faith is the making of the wedding garment. Make it ready.
Hallelujah! Our Lord God Almighty reigns. Let us rejoice and give him glory, for the wedding of the Lamb has come. Clothe us in the fine linen of the righteous acts you work in us by your grace. Faithful and True is your name. King of kings and Lord of lords. Through Christ our Lord. Amen.