“What do you mean when you speak of unanimity, of unity of soul and heart, reached through agreement of will? If the Savior had thought of making us one only in this sense, He would have prayed like this: Father, just as we wish the same thing, so may they also wish the same thing so that, by their agreement, we may all be one.”

St. Hilary, De Trinitate, quoted from Michael Ramsey’s The Gospel and the Catholic Church, 123-4.