Blessed is the nation whose God is the Lord.
Psalm 33:12
Words: Adin Ballou, in The Gospel Psalmist, edited by John G. Adams & S. B. Ball (Boston, Massachusetts: J. M. Usher, 1861), page 289.
Music: Orland William Arnold, in The American Vocalist, edited by Daniel H. Mansfield (Boston, Massachusetts: Thompson, Bigelow & Brown, 1849), page 3 (🔊 pdf nwc).
If you know where to get a good picture of Arnold (head & shoulders, at least 200×300 pixels),

Not individual souls alone
Require the new and heavenly birth,
Society in sin up-grown,
Needs Christianizing o’er the earth.
True righteousness must be the same,
For man combined or isolate;
The happiness of all its aim,
In family, or teeming state.
The principles by Jesus taught
Must be impartially applied.
And social institutions brought,
With laws divine to coincide.
’Tis ours to speed this glorious change,
This renovation to prepare,
Its introduction to arrange,
And in its future triumphs share.
Thus Heav’n and earth shall be renewed,
By God’s regenerating word,
Our wayward race to Christ subdued,
And Eden’s harmony restored.