Buy Ybarra's book: https://www.amazon.com/Filioque-Revisiting-Doctrinal-Catholics-Orthodox/dp/B09TF1JZVH/ref=sr_1_2?keywords=filioque+erick+ybarraandqid=1648302962andsprefix=filioque+%2Caps%2C114andsr=8-2 Against the Greek Schisms: https://onepeterfive.com/category/eastern-orthodoxy/ History of the Greek Schisms on MOC: https://www.youtube.com/playlist?list=PLCI-gMyQkP6uScz4E2EjiyMAJoGz_PD2E Greek Schisms on Reason and Theology: https://www.youtube.com/playlist?list=PLlZ81PxKUrgwp_6lX0wEsVLPDEuJEPaz1 Eastern Catholicism on Reason and Theology: https://www.youtube.com/playlist?list=PLlZ81PxKUrgx4QkxNvob9Gp4abyk0v6E-