oneness of god on Unchanging

Almighty and everlasting God, you have given us your servants grace, by the confession of a true faith, to acknowledge the glory of the eternal Trinity and in the power of the divine majesty to worshi...

O God, whose glory it is always to have mercy: Be gracious to all who have gone astray from your ways, and bring them again with penitent hearts and steadfast faith to embrace and hold fast the unchan...