"On the 30th of April, 1922, in the Vatican Throne Room, a throng of Cardinals, Bishops, Priests, and Nuns, boys and girls, who all fell on their knees, were addressed fromthe Throne by Pope Pius XI., who, in a haughty tone, said: 'You know that I am the Holy Father, the representative of God on the earth, the Vicar of Christ, which means that I am God on the earth.'" (Quoted from "The Bulwark", October, 1922, reporting on the speach which was heard by those attending, including some reporters.)
Thank you for taking the time to look it up and note the reference.
You're welcome. Took a little bit, but I found it.