It's a very controversial issue for some,there are those who claim only one is then others state they all apply today.
I believe that all the Apostles have teachings that we should take notice of but which one has the sole role to teach me how to enter the happy life eternal ?
Did Jesus pick a particular one ?
Was there agreement between all the Apostles as to who has that sole role ?
The Bible will answer that question with the verses you provide.
Any takers ?
It must be that all the writers of the NT taught the same.
If this is not so,,,then our bibles are worthless.
Paul states that if we do not believe that Jesus is HE...we remain in our sins.
John 8:24
24“Therefore I said to you that you will die in your sins; for unless you believe that I am He, you will die in your sins.”
IF there is ever any doubt or question about any doctrine,,,
we should always go to the words of Jesus.
This is what Jesus said:
Matthew 7:21
21“Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.
Every writer of the NT taught thea above.
Jesus gave the great commission to all of the Apostles...
not just to some.
Matthew 28:16-20
16But the eleven disciples proceeded to Galilee, to the mountain which Jesus had designated.
17When they saw Him, they worshiped Him; but some were doubtful.
18And Jesus came up and spoke to them, saying, “All authority has been given to Me in heaven and on earth.
19“Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit,
20teaching them to observe all that I commanded you; and lo, I am with you always, even to the end of the age.”