The Collect for Purity is the name traditionally given to the collect

Collect

In Christian liturgy, a collect is both a liturgical action and a short, general prayer. In the Middle Ages, the prayer was referred to in Latin as collectio, but in the more ancient sources, as oratio. In English, and in this usage, "collect" is pronounced with the stress on the first syllable...

 prayed near the beginning of the Eucharist in most Anglican rites. It was originally drafted in Latin for the Sarum

Sarum Rite

The Sarum Rite was a variant of the Roman Rite widely used for the ordering of Christian public worship, including the Mass and the Divine Office...

 missal

Missal

A missal is a liturgical book containing all instructions and texts necessary for the celebration of Mass throughout the year.-History:Before the compilation of such books, several books were used when celebrating Mass...

 and was part of the preparation prayers of priests before Mass

Mass

Mass can be defined as a quantitive measure of the resistance an object has to change in its velocity.In physics, mass commonly refers to any of the following three properties of matter, which have been shown experimentally to be equivalent:...

. Thomas Cranmer

Thomas Cranmer

Thomas Cranmer was a leader of the English Reformation and Archbishop of Canterbury during the reigns of Henry VIII, Edward VI and, for a short time, Mary I. He helped build a favourable case for Henry's divorce from Catherine of Aragon which resulted in the separation of the English Church from...

 translated the prayer

Prayer

Prayer is a form of religious practice that seeks to activate a volitional rapport to a deity through deliberate practice. Prayer may be either individual or communal and take place in public or in private. It may involve the use of words or song. When language is used, prayer may take the form of...

 into English and from there it has entered almost every Anglican

Anglicanism

Anglicanism is a tradition within Christianity comprising churches with historical connections to the Church of England or similar beliefs, worship and church structures. The word Anglican originates in ecclesia anglicana, a medieval Latin phrase dating to at least 1246 that means the English...

 prayer book in the world.

Versions

In the Sarum Rite

Sarum Rite

The Sarum Rite was a variant of the Roman Rite widely used for the ordering of Christian public worship, including the Mass and the Divine Office...

, the original Latin prayer occurs as one of the prayers said before mass:

Deus cui omne cor patet et omnis voluntas loquitur: et quem nullum latet secretum: purifica per infusionem sancti spiritus cogitationes cordis nostri: ut te perfecte diligere et digne laudare mereamur, per dominum nostrum iesum christum filium tuum qui tecum vivit et regnat in unitate eiusdem spiritus sancti deus, per omnia secula seculorum. Amen.

A version appears as the introduction to the 14th Century anonymous contemplative treatise, The Cloud of Unknowing

The Cloud of Unknowing

The Cloud of Unknowing is an anonymous work of Christian mysticism written in Middle English in the latter half of the 14th century. The text is a spiritual guide on contemplative prayer in the late Middle Ages.Manuscripts of the work are today at British Library and Cambridge University Library...

:

God, unto Whom alle hertes ben open, and unto Whom alle wille spekith, and unto Whom no privé thing is hid: I beseche Thee so for to clense the entent of myn heart with the unspekable gift of Thi grace that I may parfiteliche love Thee, and worthilich preise Thee. Amen.

Cranmer's translation first appeared in the First Prayer Book of Edward VI (1549), and carried over unchanged (aside from modernisation of spelling) in the Second Prayer Book of Edward VI (1552) and The Book of Common Prayer (1662), and thence to all Anglican prayer books based on The Book of Common Prayer. This translation is still used in many Anglican churches:

Almighty God, unto Whom all hearts be open, all desires known, and from Whom no secrets are hid: Cleanse the thoughts of our hearts by the inspiration of Thy Holy Spirit, that we may perfectly love Thee, and worthily magnify Thy holy Name: through Christ our Lord. Amen.

The 1979 Book of Common Prayer

Book of Common Prayer

The Book of Common Prayer is the short title of a number of related prayer books used in the Anglican Communion, as well as by the Continuing Anglican, "Anglican realignment" and other Anglican churches. The original book, published in 1549 , in the reign of Edward VI, was a product of the English...

 published by The Episcopal Church includes a version in Rite Two with modern wording:

Almighty God, to You all hearts are open, all desires known, and from You no secrets are hid: Cleanse the thoughts of our hearts by the inspiration of Your Holy Spirit, that we may perfectly love You, and worthily magnify Your holy Name; through Christ our Lord. Amen.

The 1980 Alternative Service Book

Alternative Service Book

The Alternative Service Book 1980 was the first complete prayer book produced by the Church of England since 1662. Its name derives from the fact that it was proposed not as a replacement for the Book of Common Prayer but merely as an alternative to it...

 published by the Church of England

Church of England

The Church of England is the officially established Christian church in England and the Mother Church of the worldwide Anglican Communion. The church considers itself within the tradition of Western Christianity and dates its formal establishment principally to the mission to England by St...

, contains this version in modern English:

Almighty God, to Whom all hearts are open, all desires known, and from Whom no secrets are hidden: cleanse the thoughts of our hearts by the inspiration of Your Holy Spirit, that we may perfectly love You, and worthily magnify Your holy name; through Christ our Lord. Amen.