In the Matins for “The Service of the Holy Eight Oecumenical Council” (Changed on the 1st Sunday of the month of February. A composition of Nun Thecla of Saint Stephen’s) we read:
Theotokion
Immaculate Maiden, thou in thy womb conceiv’dest Christ, surpassing all of nature’s laws, but according to nature wast thou conceived; we say, therefore, that belief in thy spotless conception is delusional. (The Divine Service of the Holy Eight Oecumenical Council Convoked in Constantinople in the Years of Our Lord 879-880 [trans. Gergory Heers; Uncut Mountain Press, 2024], 71)