I will sing of the mercies of the Lord forever.@Psalm 89:1

James J. Cummins, Seals of the Covenant Opened in the Sacraments 1839.

Darwall’s 148th John Darwall, in The New Universal Psalmodist, by Aaron Williams, 1770 (🔊 pdf nwc).

Shall hymns of grateful love
Through Heav’n’s high arches ring,
And all the hosts above their songs of triumph sing;
And shall we not take up the strain,
And send the echo back again?

Shall they adore the Lord,
Who bought them with His blood,
And all the love record that led them home to God;
And shall not we take up the strain,
And send the echo back again?

O spread the joyful sound,
The Savior’s love proclaim,
And publish all around
Salvation through His name;
Till all the world take up the strain,
And send the echo back again.