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Christ

Doctrine Tree

Catholic Christology confesses the one divine Person of the Son in two complete natures, divine and human.

Why it matters

Catholic Marian teaching is Christological and ecclesial: Mother of God, perpetual virginity, Immaculate Conception, and Assumption are distinct claims with distinct histories.

Historical context

The early councils define Christological grammar; later papal definitions articulate the Immaculate Conception and Assumption within Catholic reception.

Tradition note

This is a Catholic introduction. Latin and Eastern Catholic churches share communion while differing in liturgical and theological expression.

Memory hook

Everything affirmed of Mary serves the identity and saving work of Christ.

Key points

Common questions

Practice and discussion

Scripture

Primary sources

Gregory of Nazianzus argues:

Gregory insists that the humanity Christ assumes must be complete because what is not assumed is not healed.

For that which He has not assumed He has not healed; but that which is united to His Godhead is also saved.

— St. Gregory the Theologian, Letters: To Cledonius the Priest Against Apollinarius (Epistle 101), trans. Charles Gordon Browne and James Edward Swallow

Passage context and translation

Gregory rejects Apollinarianism by insisting that the Word assumed the fullness of human nature, including a human mind.

Before the excerpt

If anyone has put his trust in Him as a Man without a human mind, he is really bereft of mind, and quite unworthy of salvation.

After the excerpt

If only half Adam fell, then that which Christ assumes and saves may be half also; but if the whole of his nature fell, it must be united to the whole nature of Him that was begotten, and so be saved as a whole.

Browne and Swallow translation in Nicene and Post-Nicene Fathers, Second Series, Volume 7; surrounding excerpts come from the linked Epistle 101 paragraph.

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