Previous scholarship has often employed the categories of ‘voluntary’ and ‘established’ religion when studying lay involvement in parish religion; yet these categories do not provide adequate space for the vitality of lay religious initiatives during the English Reformation. Through a study of the singing of metrical psalms, this article argues that the categories of ‘inspiration’ and ‘institution’ provide a more nuanced understanding of lay religious initiatives during the English Reformation. It outlines the ways in which the singing of metrical psalms, taken from the Sternhold and Hopkins Whole Booke of Psalmes, moved from its origins in domestic devotions, through inspirational initiative, to become an institutionalized part of the wors...