In the section entitled Concerning the Service of the Church the Book of Common Prayer identifies the normative services of the Episcopal Church The Holy Eucharist the principal act of Christian worship on the Lords Day and other major Feasts and Daily Morning and Evening Prayer as set forth in this book are the regular services appointed for public worship in the Church. BCP 13 Eucharistic propers collects Scripture readings and proper prefaces are provided in the Book of Common Prayer for the days when the Eucharist is the principal service. As celebration of the Eucharist has become more frequent many congregations and other communities of faith now celebrate weekday Eucharists on days for which the Prayer Book does not assign propers.