That Chapter of John is about Jesus’ resurrection not forgiveness of sin.
The Pope is not Jesus or God.
Ah, yes, in your own personal opinion of Scripture, that could be what that chapter of John is about, but it would be different than what the Apostle’s taught and even what many other Christian denominations teach. I wonder who I will believe on that interpretation?
And, no, the pope is not Jesus or God, he is merely a sinful human being, guided by the Holy Spirit in matters of Faith and Morals.