The Roman Missal promulgated by Paul VI is the ordinary expression of the 'Lex orandi' (Law of prayer) of the Catholic Church of the Latin rite. Nonetheless, the Roman Missal promulgated by St. Pius V and reissued by Bl. John XXIII is to be considered as an extraordinary expression of that same 'Lex orandi,' and must be given due honour for its venerable and ancient usage. These two expressions of the Church's Lex orandi will in no any way lead to a division in the Church's 'Lex credendi' (Law of belief). They are, in fact two usages of the one Roman rite.
It is, therefore, permissible to celebrate the Sacrifice of the Mass following the typical edition of the Roman Missal promulgated by Bl. John XXIII in 1962 and never abrogated, as an extraordinary form of the Liturgy of the Church.
On this first anniversary of the restoration of the Traditional Mass by the Holy Father, here is a video of the Te Deum, the Church's hymn of praise and thanksgiving, sung by the schola of the Priestly Fraternity of St. Peter's Our Lady of Guadalupe Seminary on the occasion of the first Mass of Fr. Robert Cano, FSSP, at St. Francis of Assisi Church, Lincoln, Nebraska, in November 2007.
Te Deum laudamus:
te Dominum confitemur.
Te aeternum Patrem
omnis terra veneratur.
Tibi omnes Angeli;
tibi caeli et universae Potestates;
Tibi Cherubim et Seraphim
incessabili voce proclamant:
Sanctus, Sanctus, Sanctus, Dominus
Deus Sabaoth.
Pleni sunt caeli et terra
maiestatis gloriae tuae.
Te gloriosus Apostolorum chorus,
Te Prophetarum laudabilis numerus,
Te Martyrum candidatus laudat exercitus.
Te per orbem terrarum
sancta confitetur Ecclesia,
Patrem immensae maiestatis:
Venerandum tuum verum et unicum Filium;
Sanctum quoque Paraclitum Spiritum.
Tu Rex gloriae, Christe.
Tu Patris sempiternus es Filius.
Tu ad liberandum suscepturus hominem,
non horruisti Virginis uterum.
Tu, devicto mortis aculeo, aperuisti
credentibus regna caelorum.
Tu ad dexteram Dei sedes, in gloria Patris.
Iudex crederis esse venturus.
Te ergo quaesumus, tuis famulis subveni:
quos pretioso sanguine redemisti.
Aeterna fac cum sanctis tuis in gloria numerari.
Salvum fac populum tuum,
Domine, et benedic hereditati tuae.
Et rege eos, et extolle illos usque in aeternum.
Per singulos dies benedicimus te;
Et laudamus Nomen tuum in saeculum, et in saeculum saeculi.
Dignare, Domine, die isto sine peccato nos custodire.
Miserere nostri domine, miserere nostri.
Fiat misericordia tua,
Domine, super nos, quemadmodum speravimus in te.
In te, Domine, speravi:
non confundar in aeternum.
[We praise thee, O God
we acknowledge thee to be the Lord
All the earth doth worship thee
the Father everlasting.
To thee all the angels cry aloud
the heavens and all the powers therein.
To thee cherubim and seraphim do continually cry
Holy, Holy, Holy,
Lord God of Sabaoth; heaven and earth
are full of the majesty of thy glory.
The glorious company of apostles praise thee.
The goodly fellowship of the prophets praise thee.
The noble army of martyrs praise thee.
The Holy Church
throughout all the world doth acknowledge thee;
the father of an infinite majesty;
thine honourable true and only Son;
also the Holy Ghost the comforter.
Thou art the King of Glory, O Christ.
Thou art the everlasting Son of the Father.
When thou tookest upon thee to deliver man,
thou didst not abhor the Virgin's womb.
When thou hadst overcome the sharpness of death,
thou didst open the kingdom of heaven to all believers.
Thou sittest at the hand of God in glory of the Father.
We believe that Thou shalt come to be our Judge.
We therefore pray thee, help thy servants,
whom thou hast redeemed with thy precious blood.
Make them numbered with thy saints in glory everlasting
O Lord save thy people
and bless thine heritage.
Govern them and lift them up for ever.
Day by day we magnify thee;
and worship thy name, ever world without end.
Vouchsafe, O Lord to keep us this day without sin.
O Lord, have mercy upon us, have mercy upon us.
O Lord, let thy mercy lighten upon us, as our trust is in thee.
O Lord in thee have I trusted let me not be confounded.]
