Theodore of Mopsuestia held that union of Christ′s two natures (divine and human) is manifested as a prosopic union. Henana on the other hand favored the concept of a hypostatic union of the two natures, as specified by the Council of Chalcedon in 451. Accordingly, he believed in God's suffering on the Cross, impossible without a hypostatic union between the two natures. Those christological controversies were reflected in a debate between pro-Chalcedonian supporters of "one-"qnoma"" Christology and pro-Antiochene supporters of "two-"qnome"" Christology (qnoma, a Syriac term, translated as "hypostasis"). The divide between two groups was worsened by interventions on the part of West Syriac miaphysites.