Sacris Solemniis

From Catholic Culture:

This is one of the five beautiful hymns St. Thomas Aquinas (1225-1274) composed in honor of Jesus in the Blessed Sacrament at specific request of Pope Urban IV (1261-1264) when the Pope first established the Feast of Corpus Christi in 1264. Today Sacris Solemniis is used as a hymn for the Office of the Readings for Corpus Christi. The last two stanzas are the text for the hymn Panis Angelicus. Latin from the Liturgia Horarum. English translation is a cento based upon a translation by John David Chambers (1805-1893).

At this our solemn feast
let holy joys abound,
and from the inmost breast
let songs of praise resound;
let ancient rites depart,
and all be new around,
in every act, and voice, and heart.

Remember we that eve,
when, the Last Supper spread,
Christ, as we all believe,
the Lamb, with leavenless bread,
among His brethren shared,
and thus the Law obeyed,
of all unto their sire declared.

The typic Lamb consumed,
the legal Feast complete,
the Lord unto the Twelve
His Body gave to eat;
the whole to all, no less
the whole to each did mete
with His own hands, as we confess.

He gave them, weak and frail,
His Flesh, their Food to be;
on them, downcast and sad,
His Blood bestowed He:
and thus to them He spake,
"Receive this Cup from Me,
and all of you of this partake."

So He this Sacrifice
to institute did will,
and charged His priests alone
that office to fulfill:
to them He did confide:
to whom it pertains still
to take, and the rest divide.

Thus Angels' Bread is made
the Bread of man today:
the Living Bread from heaven
with figures dost away:
O wondrous gift indeed!
the poor and lowly may
upon their Lord and Master feed.

Thee, therefore, we implore,
o Godhead, One in Three,
so may Thou visit us
as we now worship Thee;
and lead us on Thy way,
That we at last may see
the light wherein Thou dwellest aye.