Sing, O heavens; and be joyful, O earth; and break forth into singing, O mountains: for the Lord hath comforted His people, and will have mercy upon His afflicted.@Isaiah 49:13

William F. McCauley, in The Seed Sower (Toronto, Canada: William Briggs, 1897), number 145 (🔊 pdf nwc).

From choirs redeemed in realms above,
Full gently breathes the whispering strain;
They sing the song of Jesus’ love—
Come let us join to raise our glad refrain.

Refrain

His word is sure, His mercy free,
He gave Himself to ransom me;
His word is sure, His mercy free,
He gave Himself to ransom me;
His word is sure, His mercy free,
He gave Himself to ransom me.

Hark! plainer now we hear their song,
And sweeter still their music floats,
While we in louder strains prolong
And tell our joy in more triumphant notes.

Refrain

Soon we shall join the heav’nly choirs
That sing Immanuel’s praise on high,
While each exultant voice aspires
With joy to swell the chorus of the sky.

Refrain