From Chapter 23, Book III of Eusebius' Church History: Listen to a tale, which is not a mere tale, but a narrative concerning John the apostle, which has been handed down and treasured up in memory. For when, after the tyrant’s death, he returned from the isle of Patmos to Ephesus, he went away upon their invitation to the neighboring territories of the Gentiles, to appoint bishops in some places, in other places to set in order whole churches, elsewhere to choose to the ministry some one of those that were pointed out by the Spirit.

From the Douay-Rheims translation of the Third Book of Kings (1 Kings): [21] And Elias coming to all the people, said: How long do you halt between two sides? if the Lord be God, follow him: but if Baal, then follow him. And the people did not answer him a word. [22] And Elias said again to the people: I only remain a prophet of the Lord: but the prophets of Baal are four hundred and fifty men.

From Pope Pius XII’s Encyclical Fulgens Radiatur: Trusting in God and relying on His ever present help, he went south and arrived at a fort “called Cassino situated on the side of a high mountain …; on this stood an old temple where Apollo was worshipped by the foolish country people, according to the custom of the ancient heathens. Around it likewise grew groves, in which even till that time the mad multitude of infidels used to offer their idolatrous sacrifices.

Excerpted from Saint Dominic de Guzman by Fray Diego Matamoros On their first evening of the journey, the small band of Royal emissaries stopped at an inn is [sic] southern France to rest for the night. The owner of the inn was a heretic, who engaged the bishop and young sub-prior in a discussion. Up to this point, neither the bishop, nor Saint Dominic had any idea of the nature of this heresy, or the mental hold that it had on its adherents.