Tantum Ergo is the last two stanzas from the Eucharistic Prayer (Pange Lingua) composed by St. Thomas Aquinas and is used at Benediction of the Blessed Sacrament. The response and the prayer at the end is a later addition used at Benediction. A partial indulgence is granted to the faithful who recite it and a plenary indulgence is granted to those who recite it on Holy Thursday or Corpus Christi.

Tantum ergo Sacramentum

Veneremur cernui:

Et antiquum documentum

Novo cedat ritui:

Praestet fides supplementum

Sensuum defectui.

Genitori, Genitoque

Laus et iubilatio,

Salus, honor, virtus quoque

Sit et benedictio:

Procedenti ab utroque

Compar sit laudatio.

Amen.

V. Panem de coelo praestitisti eis. (T.P. Alleluia)

R. Omne delectamentum in se habentem. (T.P. Alleluia)

Oremus: Deus, qui nobis sub sacramento mirabili, passionis tuae memoriam reliquisti: tribue, quaesumus, ita nos corporis et sanguinis tui sacra mysteria venerari, ut redemptionis tuae fructum in nobis iugiter sentiamus. Qui vivis et regnas in saecula saeculorum.

R. Amen.

Down in adoration falling,

Lo! the sacred Host we hail,

Lo! oe'r ancient forms departing

Newer rites of grace prevail;

Faith for all defects supplying,

Where the feeble senses fail.

To the everlasting Father,

And the Son Who reigns on high

With the Holy Spirit proceeding

Forth from each eternally,

Be salvation, honor blessing,

Might and endless majesty.

Amen.

R. Thou hast given them bread from heaven (P.T. Alleluia).

V. Having within it all sweetness (P.T. Alleluia).

Let us pray: O God, who in this wonderful Sacrament left us a memorial of Thy Passion: grant, we implore Thee, that we may so venerate the sacred mysteries of Thy Body and Blood, as always to be conscious of the fruit of Thy Redemption. Thou who livest and reignest forever and ever.

R. Amen.