a) Excerpted from Lesson 14: The Revelation of Jesus Christ to the Apostle & Evangelist John the Theologian, Rev. 13: 4-7 (Series 3, Section 2), by Fr. Peter Heers:

https://rumble.com/v3waeqi-banned-by-youtube-the-revelation-course-part-three-lesson-14.html

b) Excerpt from: Orthodox Ecclesiology - Lesson 10: The Church before the face of the Religion of Antichrist”: 

https://www.youtube.com/watch?v=RMTDOpQ0VkA