It appears you think Jesus is already married to an institution, the RCC.
Actually, He is not married “yet,” and His bride will be those who have chosen/continued in a personal relationship with Him through faith, not those who have aligned themselves with a temporal institution.
Jesus will marry his bride (Revelation 19) after the angels separate the wheat from the tares (Matthew 13).
Jesus created his Church.
“His bride will be those who have chosen/continued in a personal relationship”.
I don’t see ‘personal relationship’ anywhere in scripture. Jesus isn’t your boyfriend.
He does say that he created His Church and that the gates of hell will not prevail against it.
“with a temporal institution.”
That’s just it. His Church exists for all times. It is not a temporal institution. Christ founded the Catholic church.
Our Lord was Priest, Sacrifice and Bridegroom in offering of His Own Body as the sacrificial Lamb of the New Covenant. The problem is you don't understand covenant language. Covenant-making is family making in the same way as a marriage or an adoption and the Bible is full of this language from beginning to end. That is the whole purpose of the Cross! Our Lord didn't just take our sins and suffer our punishment... that's the smaller part of it. That language is ritualistic and harkens back to the sacrifices required of the Israelites to extricate themselves from their idol worship. It is an atonement... but not the bigger picture. We are meant to look more deeply than seeing a vengeful god venting his righteous anger and we are meant to have more than simple gratitude that it wasn't vented on us.
Our Lord was lifted up on that Cross as the sacrificial offering of the New Covenant that restored us to communion with God. There is no future covenant, no future sacrifice that will make this union any stronger. St Paul tells us that we will judge the angels. That's right... but why? It's because we are more than sinners redeemed, more than the condemned exonerated... we are sons and daughters restored to the Family of God. We are part of the Royal Family of Heaven and, through the Marriage of the Lamb to His Church (as spoken of throughout Scripture... and very eloquently and directly in Ephesians), we are One Flesh with Christ and participants in the Life of the Holy Trinity.
The Once for All Sacrifice of the Cross is the Offering of the Marriage Feast of the Lamb that stands as the centerpiece of history and the eternal and ever-present reality of Heaven. We participate in this eternal mystery in each Mass when the Church joins Herself to Her Savior in a marital embrace. The Revelation of John is that this reality is all around us now as we celebrate our communion with the saints in Heaven.