A historical English prayer collected in Prayers of the Middle Ages: Light from a Thousand Years, edited by J. Manning Potts.
Historical edition. Historical claims and instructions are preserved as historical context.
O glorious and almighty God, in whom all the spirits of the blessed place the confidence of their hope; grant to us that, by Thy help, we may be able ever to serve Thee with a pure mind; through Jesus Christ our Lord. Amen.