Saint Gregory of Nyssa, Bishop, Teacher of the Faith

Almighty and everlasting God, whose servant Gregory  steadfastly confessed thy Son our Saviour Jesus Christ to be Very God and Very Man: Grant that we may hold fast to this faith, and evermore magnify his holy Name; through the same thy Son Jesus Christ our Lord, who liveth and reigneth with thee and the Holy Spirit ever, one God, world without end. Amen.

¶ Or this:

Almighty God, who hast revealed to thy Church thine  eternal Being of glorious majesty and perfect love as one God in Trinity of Persons: Give us grace that, like thy bishop Gregory of Nyssa, we may continue steadfast in the confession of this faith, and constant in our worship of thee, Father, Son, and Holy Ghost; who livest and reignest now and forever. Amen.