Setting the Terms Before the Service Begins

As the opening prayer of the Anglican communion service, the Collect for Purity performs a distinct liturgical function compared to the collects that follow it later in the service: where those later collects typically address the specific theme of the day or season in the church calendar, this one addresses the general condition of the worshippers themselves, asking for cleansed thoughts before any particular topic or scripture reading is introduced. Its brevity, a single sentence in most translations, has kept it largely unchanged even in modern-language revisions of Anglican liturgy that have significantly reworded longer or more archaic-sounding prayers elsewhere in the service, suggesting liturgists have generally regarded its wording as already about as economical as the content allows. It is recited or sung by the presiding minister, sometimes with the congregation responding, depending on the specific rite in use, and its placement immediately following the opening acclamation and before the collect of the day marks the formal transition from the gathering of the community into the structured, thematic portion of the liturgy proper. Its continued presence across the wide range of Anglican provinces and prayer book traditions worldwide makes it one of the more consistently preserved elements of Cranmer's original liturgical design.