Festal Evensong

O God, who declarest thy almighty power chiefly in showing mercy and pity: Mercifully grant unto us such a measure of thy grace, that we, running to obtain thy promises, may be made partakers of thy heavenly treasure; through Jesus Christ our Lord, who liveth and reigneth with thee and the Holy Spirit, one God, for ever and ever. Amen. (Proper 21)