I thought that I would share the Collect for the 14th Sunday after Trinity (the 15th Sunday after Pentecost, depending on how you count) in the Book of Common Prayer and from the Roman Missal.
From the Book of Common Prayer,
ALMIGHTY and everlasting God, give unto us the increase of faith, hope, and charity; and, that we may obtain that which thou dost promise, make us to love that which thou dost command; through Jesus Christ our Lord. Amen.
From the Roman Missal (1962),
O Lord, we beseech thee, let thy continual pity cleanse and defend thy Church, and because it cannot continue in safety without thy succour, preserve it evermore by thy help and goodness. Through the same Jesus Christ, thy Son, Our Lord, Who liveth and reigneth with thee in the unity of the Holy Ghost, God, world without end. Amen.
Monday the 14th of September is also the Exaltation of the Holy Cross (Holy Cross Day to most Anglicans) which has a beautiful Collect in each of the liturgical traditions as well and I would like to share them with you today in advance. The similarity leads me to believe that the Anglican Breviary may have lifted and changed the language slightly to conform to BCP language and custom because there probably isn’t a BCP Collect specifically for this Feast day.
From the BCP,
O GOD, who dost gladden us upon this day by the festival of the Exaltation of the holy Cross: grant that we who have acknowledged the mysterty of redemption here on earth, may rejoice in the everlasting fruits thereof in heaven. Though Jesus Christ your Son, our Lord, who liveth and reignth with thee and the Holy Spirit; one God, now and forever. Amen.
From the Missal,
O God, Who dost this day gladden us by the yearly Feast of the Exaltation of the Holy Cross, grant, we beseech thee, that even as we have understood the mystery thereof upon earth, so we may worthily enjoy in heaven the fruits of the redemption which was paid thereon. Through the same Jesus Christ, thy Son, Our Lord, Who liveth and reigneth with thee in the unity of the Holy Ghost, God, world without end. Amen.
These Collects will be prayed during Mass as well as during many of the Hours in the Divine Office. You can follow along in prayer here.