Timothy 3:16 says, "All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, 17 so that the servant of God may be thoroughly equipped for every good work."
It does NOT say...
"All catechism teaching is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the servant of ROME may be thoroughly equipped for every good work."