15 – 6th Ecumenical Council-681 AD

6th Ecumenical Council-681 AD reaffirms two natural energies and two natural wills of Christ taught by Pope Leo and Maximus the Confessor against the Emperor Heraclius’ Church reunion efforts using Monoenergism and Monothelatism. 

http://archive.org/download/OrthodoxChurchHistory/WEB_15-6th_Ec_Council_ed.mp3