Composer: Cesar Franck
Panis Angelicus (the text) actually comes from the second last verse of a hymn called Sacris solemniis, written by Saint Thomas Aquinas for the Feast of Corpus Christi. It has been set to music by many, although the most famous one (and the one highlighted here) is the version composed by Cesar Franck in 1872.
Numerous artists have recorded it, including Luciano Pavarotti, Placido Domingo, Andrea Bocelli, Josh Groban, Katherine Jenkins, Richard Crooks, and Roberto Alagna. It was the song of choice for two Kennedy funeral masses - Robert Kennedy in 1968, and Edward Kennedy in 2009 (performed by Placido Domingo and Yo-Yo Ma.
I have also sung (and accompanied other singers) in the English
version, known as O Lord Most Holy. I've included the lyrics on this page below the Latin/English ones.
The angelic bread
"O Lord Most Holy" (English version lyrics)
O Lord most holy, O Lord most holy,
O loving Father, Thee would we be praising always.
Help us to know Thee;
Father, Father, grant us Thy truth and grace;
Father, Father, guide and defend us.
Rule Thou our willful hearts,
Keep Thee our wand’ring thoughts;
In all our sorrows
Let us find our rest in Thee;
And in temptation’s hour,
Save through Thy mighty pow’r
Thine aid O send us; hear us in mercy.
Show us Thy favor, so shall we live,
And sing praise to Thee.