Where does the pope's ultimate authority come from?

hello,
i would like to know where the Pope derives his ultimate authority?

thank you.

hay,

These links should be helpful for understanding the pope’s authority. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.

Recommended Reading:
The Authority of the Pope Part 1** by the Early Church Fathers**
The Authority of the Pope Part 2** by the Early Church Fathers**
How Do We Know It’s the True Church?** Twelve Things to Look For by Fr. Dwight Longenecker **

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