Gregorian Chant Hymns to the Holy Trinity

Holy Trinity Painting from the Church of the Holy Sepulcher

Holy Trinity Painting from the Church of the Holy Sepulcher.

“All life begins in the Trinity, comes from the Trinity, and is destined to seek eternal rest in the Trinity. Even damned souls, by suffering punishment for having rejected love, finally do glorify God’s justice. The life of Father, Son, and Holy Spirit, mystery of divine mysteries, is a mutual giving so complete that the Divine Persons do not exist except in relation to one another. The divine life They share with Christ’s members through Baptism is meant to be shared with all peoples through the apostolic zeal of Christians.”  1962 TLM Missal

Raphael’s Exhortation (Tobit 12:6-8)

Then he said to them secretly: Bless ye the God of heaven, give glory to him in the sight of all that live, because he hath shewn his mercy to you. For it is good to hide the secret of a king: but honourable to reveal and confess the works of God. Prayer is good with fasting and alms more than to lay up treasures of gold.

O Lux Beata Trinitas – O Trinity of Blessed Light

O Lux Be­a­ta Trin­i­tas (O Trinity of Blessed Light)  is a 4th century Latin hymn attributed to St. Ambrose of Milan (340-397). It was revised under Pope Urban VIII (1568-1644) as “Iam Sol Recedit Igneous”, which is used in the Roman Breviary for Saturday Vespers and on Trinity Sunday.

Iam Sol Recedit Igneous

IAM sol recedit igneus:
Tu lux perennis Unitas,
nostris, beata Trinitas,
infunde lumen cordibus.
AS fades the glowing orb of day,
to Thee, great source of light, we pray;
blest Three in One, to every heart
Thy beams of live and love impart.
Te mane laudum carmine,
Te deprecamur vespere;
digneris ut te supplices
laudemus inter caelites.
At early dawn, at close of day,
to Thee our vows we humbly pay;
may we, mid joys that never end,
with Thy bright Saints in homage bend.
Patri, simulque Filio,
tibique sancte Spiritus,
sicut fuit, sit iugiter
saeclum per omne gloria.
To God the Father, and the Son,
and Holy Spirit, Three in One,
be endless glory, as before
the world began, so evermore.

Translation by Fr. Thomas Joseph Potter (1828-1873)