[Cronos]

Furthermore, Jesus goes on to say that the community, the ecclesia/CHURCH that He builds on KEPHAS (= Peter) he gates of Hades[c] will not overcome the church I build on KEPHAS/Peter

This church is the inauguration of the Kingdom of God - it is the Church BOTH on heaven and on Earth - the Church militant (on earth) and the Church triumphant (in heaven).

In Christ we are alive - even those in heaven

[Wuli]

“This church is the inauguration of the Kingdom of God”

No, it is HIS Church, founded by Him, not by Peter, and He, not Peter or any follower of Rome is its HEAD. There is no “Vicar of Christ”, there is only Father, Son and Holy Spirit.