Sorry; but if you'd paid attention during YOUR catechism classes you'd have noted your first pope, Peter I think was his name, made the claim.
2 Peter 1:3 His divine power has given us everything we need for a godly life through our knowledge of him who called us by his own glory and goodness.
2 Thessalonians 2:15 - Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.