Well you tell me which Protestant Church is healing illnesses, casting out demons, and the “whole Church” is in fear of, and one chief steward goes “here and there among them all” and I’ll join that same day.
************Now it is my turn to admonish you to be careful you do not make promises you are not prepared to keep.

Living in a mostly post-Christian nation (north America) we are not used to witnessing these events. There are however, reports of the effectiveness of many underground (churches) groups of believers and some denominational churches who in other countries are experiencing the leading and openness of the Holy Spirit in ways that resemble the NT church. The result is the winning of souls in droves and many even among the Muslim population.
My point is that there are aspects of the infant Church, under the Apostles, which is not given to its predecessor generations. What we have is faith, which the great signs were important to establish. Now, they are no longer necessary. Blessed are those who believe without “seeing”. There really isn’t a provable argument for the Primacy of the See of Rome. There isn’t a test that can be done to show the Catholic Eucharist is indeed changed by the Holy Spirit. And none of the churches are healing people of wounds and sicknesses out in the public and streets.
******** I am assuming you meant succeeding generations rather than predecessor? Is it really because the signs are not necessary any longer or is it because we are all to “civilized” or set in our pre-packaged ideas of what faith, church and practice should consist of? We, and myself included have a comfort level of lukewarmness that stifles the Holy Spirit. Unfortunately the televangelist type of ministry has exploited the real for profit in many cases as well.
What we believe is the historical account of the Church leadership through Rome, as the significant witness of St Peter’s predecessor by Apostolic succession. Even though these leaders who have been given a portion of this prime ministry, it hasn’t magically kept them from committing sinful deeds, like the rest of us. But we aren’t claiming them to be Christ Himself. We only claim them to be Christ’s stewards. We rejoice when they behave holy, and lament when they act shamefully. Yet, they are who they are because God put them there. And so for His sake, we serve under their jurisdiction.