A prayer of Blessed John Henry Newman:
LORD JESUS CHRIST, who, when you were about to suffer, did pray for your disciples to the end of time that they might all be one, as you are in the Father, and the Father in you, break down the walls of separation which divide one party and denomination of Christians from another. Teach all men that the see of St Peter, the Holy Church of Rome, is the foundation, centre, and instrument of unity. Open their hearts to the long-forgotten truth that our Holy Father, the Pope, is your Vicar and Representative; so that as there is but one holy company in heaven above, so likewise there may be one communion, confessing and glorifying your holy name here below.