O Holy Spirit, font of love, Thou source of life, and joy, and peace, With holy fire come from above, And bid our hearts their warmth increase. II O Thou who didst with love’s strong cord Unite the Father and the Son, May we who love a common Lord, In mutual love be bound in one. III Now to the Father throned on high, And unto Christ His only Son, And to the Spirit, glory be, Now, and while endless ages run. _Trinity_ TU TRINITATIS UNITAS A cento. Added to the Roman Breviary in 1568. In a subsequent edition it is the hymn for Lauds on Trinity Sunday. It is made up of the first stanza of a hymn with the same opening, and of the third stanza of the composition, _Æterna cœli gloria_, with a doxology added. I O Thou Eternal One in Three, Dread Ruler of the earth and sky, Accept the praise we yield to Thee, Who, waking, lift our songs on high. II The star that tells the approach of day Is lingering in the glow of morn, And night and darkness fade away— O Holy Light, our souls adorn! III To God the Father throned in heaven, To Christ the One Begotten Son, And to the Spirit praise be given, Now, and while endless ages run. O PATER SANCTE, MITIS ATQUE PIE Found in two MSS. of the eleventh century, and included in the York, Sarum, and Aberdeen Breviaries. I O Holy Father, gracious Thou and tender; O Jesus Christ, Thou much adorèd Son; Spirit most sweet, Thou Paraclete, Defender, Eternally one! II Trinity Holy, Unity abiding, True God Thou art, unbounded goodness Thou, Light of the angels, trust of the confiding, We hope in Thee now. III Thee all creation pays eternal homage; Thee all Thy creatures songs of glory raise; Now come we humbly, joining in the chorus, O hear Thou our praise. IV Glory to Thee, O God of power almighty, Triune yet One, and great Thou art and high; Hymns fitly tell Thy honour, praise, and glory, and eternally. ADESTO, SANCTA TRINITAS Authorship unknown. It first occurs in a MS. of the eleventh century in the British Museum Library, has a place in the English Breviaries of York, Hereford, and St. Albans, and is printed in the “Latin Hymns of the Anglo-Saxon Church.” I Be present, Holy Trinity, One glory Thou, one Deity; Where’er creation’s bounds extend, Thou art beginning without end. II