Pange Lingua Gloriosi Corporis Mysterium

Pange Lingua Gloriosi Corporis Mysterium is a hymn written by St Thomas Aquinas (1225–1274) for the Feast of Corpus Christi (now called the Solemnity of the Holy Body and Blood of Christ). It is also sung on Maundy Thursday, during the procession from the church to the place where the Blessed Sacrament is kept until Good Friday. The last two stanzas, called separately Tantum Ergo, are sung at Benediction of the Blessed Sacrament. The hymn expresses the doctrine of transubstantiation, in which, according to the Roman Catholic faith, the bread and wine are changed into the Body and Blood of Christ.

It is often sung in English as the hymn Of the Glorious Body Telling, to the same tune as the Latin.

The opening words recall another famous Latin sequence, from which this hymn is derived: Pange Lingua Gloriosi Proelium Certaminis by Venantius Fortunatus.