Keys of Heaven

Catholic teaching on the keys of heaven
– Jesus promised the keys to heaven to Saint Peter
– The keys are a symbol of papal authority
– They are seen on papal coats of arms
– Saint Peter is often depicted holding a key or a set of keys
– The power of binding and loosing is committed to Peter

Biblical sources associated with Peter’s authority
– Isaiah 22:20–23
– Matthew 10:2
– Matthew 16:18–19
– Luke 22:32
– John 21:17

Related topics
– Catholicism portal
– Coats of arms of the Holy See
– Keys of the kingdom
– Papal regalia and insignia
– Primacy of Peter

References
– The episcopal college and its head, the Pope (para 881)
– Catechism of the Catholic Church
– Vatican Archives
– The Routledge Companion to the Christian Church
– The Catholic Encyclopedia

Further reading
– Power of the Keys in the Catholic Encyclopedia
– Chronological Lists of Popes in the Catholic Encyclopedia
– The Pope in the Catholic Encyclopedia
– Power of the Keys in the Catholic Encyclopedia (further reading)
– Jesus promises Peter the Keys of the Kingdom of Heaven in A Practical Commentary on Holy Scripture (by Friedrich Justus Knecht)Sources: https://en.wikipedia.org/wiki/Keys_of_Heaven