As is well known, Pope Honoris I stated in a letter to Patriarch Sergius of Constantinople that “we confess one will of our Lord Jesus Christ”—despite the Church’s dogmatic teaching that Christ has both a divine will and a human will—and was posthumously anathematized by the Third Council of Constantinople.
What is not generally known, what is, in fact, virtually unknown, is that Pope John IV taught that Christ “never had two contrary wills [his human will being perfectly subordinate to his divine will] …we fittingly say and truthfully confess [in a metaphorical sense] one will” and that, therefore, Honorius’s letter was not intrinsically heretical its precise wording—because it did not state whether “one will” was meant literally or metaphorically.
