If you look up this passage you will see nothing about any “successors”.
Note that in Luke 10:16, Christ, speaking to His apostles, says “He who hears you, hears me”. This is just one of the Scriptures that supports that what the Church leaders “SAY” we should follow, because we are actually listening to Christ. (example, Marian Doctrine)
Now, that power is passed down in many Scripture verses, but for an example of one, see 2 Timothy 2:2.
" 1You then, my son, be strong in the grace that is in Christ Jesus. 2And the things you have heard me say in the presence of many witnesses entrust to reliable men who will also be qualified to teach others."
Not sure what you mean. Can you clarify?
No, forget it.
No one is. We are all fallen sinners.
Then, the gates of hell have prevailed? True that we are sinners (Except for Mary and Jesus), but Christ promises that there will be no victory over His Church - infallibility.
You can claim this but it cannot be sustained just because your church says so. For it to be true it must correspond to the facts and the facts of scripture do not support the claim.
This is just one of the many areas that we differ on, you and I. I believe that The Church says so, and it is Truth, because Sacred Scripture says so (Pillar of Truth)
Can we agree that the Apostles were infallible?
If so, then Mark 28 says that they should teach ALL that He commanded them.
There has been only one human being and that is the Lord Jesus because only He was the God-man.
But, the apostles spoke for Him. See my earlier reply in this post about Luke 10:16