"...and of the Holy Spirit", pt. 4 (06/10/2024)
A clause and concept specifying the Trinitarian relationship. Also known as the “double procession of the Holy Spirit,” the filioque is the interpretation of the Holy Spirit as proceeding from both God the Father and God the Son, the filius, in the Trinity. Augustine (354–430) articulated the procession of the Holy Spirit from both the Father and the Son. The Western Church adopted the filioque clause as its official stance as articulated in both the Nicene and Chalcedonian Creeds. At the Third Council of Toledo in 589, an interpolation was made in the Nicene Creed with the phrase “and the Son” to affirm the belief and acceptance of the filioque. The Eastern Church objected to the filioque clause on ecclesiastical and theological grounds, reasoning that God is the sole source and cause of both the Son and the Spirit. Photius (d. 895), patriarch of Constantinople, confirmed for the Eastern Church that the filioque was a heretical concept. The Western Church rejected that notion, and in 1014 Pope Benedict VIII (d. 1024) reinforced the decision of the Third Council of Toledo that the filioque was orthodox. The Roman Catholic Church officially formalized it via an official creed in 1215 at the Fourth Lateran Council convened by Pope Innocent III (1160/1–1216). The filioque was reaffirmed in 1274 by the Second Council of Lyon and in 1439 by the Council of Florence. Among the leading medieval theologians who wrote apologies on the filioque were Anselm of Canterbury (c. 1033–1109) and Thomas Aquinas (c. 1225–1274).