What is the main teaching of Eutychianism regarding the nature of Christ?

Eutychianism primarily teaches that in Christ there is one nature that results from the union of the divine and human natures. According to this belief, the divine nature of Christ completely absorbs the human nature, leading to the claim that Jesus has a single nature, which is a blend of both divine and human elements. This view is often summarized by saying that Christ is "one nature and one person."

The other perspectives, such as holding to two distinct natures in Christ, emphasize the coexistence and differentiation of Christ’s human and divine natures rather than their amalgamation. In contrast, Eutychianism asserts that the natures combine to form a new nature, which does not recognize the full, unconfused, and unmingled properties of both the divine and human natures as described in traditional Christian doctrine, specifically in the Councils that addressed the nature of Christ.

Also, the belief in three distinct persons in the Trinity is fundamental to Trinitarian doctrine, which is not relevant to Eutychianism itself, and asserting only a divine nature in Christ disregards the essential human experience of Christ, which is fundamental to Christian soteriology. Thus, understanding Eutychianism hinges on recognizing its