[annalex]

there is no other scripture telling us about Peter's popehood

In Mt 16:18 and Jn 1:42 Simon Peter is renamed Rock and in Mt 16:18 te reason for the name is given, to become the foundation of Christ's Church.

In Mt 16:10 Peter alone is given the keys with which to bind and loose things on earth. Christ promises that what Peter legislates on earth will be followed in heaven.

In Jn 21:15-18 Peter alone receives the pastoral duty to feed and guide Christ's sheep.

[annalex]

In Mt 16:10

Should be Mt 16:19.