A warning from Scripture that Pope Francis would do well to heed. 

"Friends, though it were we ourselves, though it were an angel from heaven that should preach to you a gospel other than the gospel we preached to you, a curse upon him! I repeat now the warning we gave you before it happened, if anyone preaches to you what is contrary to the tradition you received, a curse upon him!" (Galatians 1:8-9)