Joy was apparent in their voices as the high school choir sang the Argentinian song “El Cielo Canta Alegria.” I was enjoying the performance but couldn’t understand the lyrics because I don’t know Spanish. But it wasn’t long until I recognized a familiar word as the choir began to jubilantly declare “Aleluya!” Repeatedly, I heard “Aleluya,” a declaration of praise to God that sounds similar in most languages around the world. Eager to know the background of the song, I went online after the concert and discovered the title translates “Heaven is singing for joy.”

In a celebratory passage in Revelation 19, we are given a glimpse of the reality expressed in that choral song—all of heaven rejoicing. In the apostle John’s vision of the future in the last book of the New Testament, he saw an enormous gathering of people and angelic creatures in heaven declaring gratitude to God. John wrote that the chorus of voices celebrated God’s power that overcame evil and injustice, His reign over the whole earth, and eternal life with Him forever. Over and over again, all the inhabitants of heaven declare “Hallelujah!” (vv. 1, 3, 4, 6), or “Praise God!”

One day people “from every tribe and language and people and nation” (5:9) will declare God’s glory. And with joy all our voices in every different language will shout together, “Hallelujah!”