At each service daily, a prayer, or 'collect' is used from the Book of Common Prayer. The collect for this week, St Simon and St Jude's Day is:
O ALMIGHTY God, who hast built thy Church upon the foundation of the Apostles and Prophets, Jesus Christ himself being the head cornerstone; Grant us so to be joined together in unity of spirit by their doctrine, that we may be made an holy temple acceptable unto thee; through Jesus Christ our Lord. Amen.
Our PDF booklet of all the Prayer Book collects is available here.