Where does Paul say what he was referring to was the Bible?
Where does it say it wasn't????? Furthermore where in the New Testament is the word 'Pope' ever found or that Peter was the first 'Pope'?
Colossians 2:8 See to it that no one takes you captive through philosophy and empty deception, according to the tradition of men, according to the elementary principles of the world, rather than according to Christ.
Seems to me Paul had something to say about following after traditions rather than the revealed word of our Lord.