Hi Lunamoth —
Speaking on behalf of us Catlicks ...
What is/was the KOG to Jesus?
Jesus is the King and the Kingdom, in that whoever is in His presence is in the Kingdom, whether the individual knows it or not.
This is the 'Messianic Secret' of Mark's Gospel "to you it is given to know, to them it is not given", when He explained the Parables of the Kingdom. In the Sermon on the Mount Jesus never said, "Blessed are they who have seen me" ... but it would be true.
In Biblical Studies there is much discussion of a twofold eschatology, of a present exchatology and a future eschatology, preached simultaneously. John is famous for this. "I and the Father are one" (present) — "the Father is greater than I" (future).
My own belief (I'll let you know what my tutor says when I get my essay back) is that the Beatitudes are future-based "for they shall" six times out of eight) whilst the Parables of the Kingdom is now.
Man: "Rabbi, tell me, where shall I find the kingdom?"
Jesus: "You're looking at it."
From the Catechism: CCC546
Jesus' invitation to enter his kingdom comes in the form of parables, a characteristic feature of his teaching. Through his parables he invites people to the feast of the kingdom, but he also asks for a radical choice: to gain the kingdom, one must give everything. Words are not enough, deeds are required. The parables are like mirrors for man: will he be hard soil or good earth for the word? What use has he made of the talents he has received? Jesus and the presence of the kingdom in this world are secretly at the heart of the parables. One must enter the kingdom, that is, become a disciple of Christ, in order to "know the secrets of the kingdom of heaven". For those who stay "outside", everything remains enigmatic.
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Faith and Grace.
Like in the Holy Spirit.
What is the relationship between the KOG and the Church?
One person is not a kingdom, even a king is not a kingdom ... a community is a kingdom. So the Church is a representation of the Kingdom, in that the Church comprises those people who declare themselves to be His people.
Likewise the Gifts of Grace manifest themselves by degree in individuals, but they are present in their fullness and entirety in the Church, and accessible to all through the Church.
The Church is the means by which Christ chooses to distribute His gifts amongst all mankind.
The Catechism has a lot to offer on this point.
Thomas