The Central Mystery of the Christian Faith
To speak of Jesus Christ is to speak of the Holy Trinity as it pertains to the very life of God Himself and therefore is the central mystery of the Christian faith (CCC 261), the truth from which all other truths proceed.
The sending of the Son of God by the Father for the redemption of mankind and the indwelling of the Spirit in individual Christians (and in the Church corporately) are not understandable apart from the truth that God is One Divine Being existing in Three Persons: the Father, the Son and Holy Spirit. This truth, then, is the fundamental revelation of the New Covenant, the highest doctrine in the hierarchy of revealed truth and the basic, distinctive characteristic of traditional, historic Christianity.
For discussion: Supra-rationality, the Trinity in Scripture, Dogmatic definitions, Nature & person, the Nature of God, Distinction and relativity, Mtutal indwelling of persons, the ontological and economic Trinity, Trinitarian works, Trinitarian missions, Analogies, Adoration.