Monothelitism

The teaching that the incarnate Christ has one will, put forward in the seventh century as a formula on which Chalcedonians and those who had refused Chalcedon might agree, and pressed by imperial decree in the Ekthesis of 638 and the Typos of 648. Its earlier form was monoenergism, one operation. Orthodoxy refused it because a will belongs to a nature: a Christ with no human will is not a man, and the will is the very faculty that fell, so what He did not assume He did not heal. St. Maximus the Confessor and Pope St. Martin I were tried and exiled for refusing it, and St. Maximus had his tongue and right hand cut off so that he could neither say it nor write it. The Sixth Ecumenical Council condemned it in 681, after both were dead.