Prayer: Sacramentary of Leo the Great

O Lord our God, refresh us with quiet sleep, when we are wearied with the day’s labor; that being assisted with the help which our weakness needs, we may be devoted to you both in body and mind. Be present, Lord, to our prayers, and protect us by day and by night, that in all success changes of times we may ever be strengthened by your unchangeableness through Jesus Christ our Lord.