The Father…the Son and…the Holy Spirit.@Matthew 28:20
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John M. Neale (1818-1866)

Unknown author, 11th Century or earlier (Adesto, sancta Trinitas); translated from Latin to English by John M. Neale in The Hymnal Noted, 1852.

Adesto Sancta Trinitas Chartres church melody (🔊 pdf nwc).

Be present, Holy Trinity,
Like splendor, and one Deity:
Of things above, and things below,
Beginning, that no end shall know.

Thee all the armies of the sky
Adore, and laud, and magnify;
And nature, in her triple frame,
Forever sanctifies Thy name.

And we, too, thanks and homage pay,
Thine own adoring flock today;
O join to that celestial song
The praises of our suppliant throng!

Light, sole and one, we Thee confess,
With triple praise we rightly bless;
Alpha and Omega we own,
With every spirit round Thy throne.

To Thee, O unbegotten One,
And Thee, O sole begotten Son,
And Thee, O Holy Ghost, we raise
Our equal and eternal praise.