Galatians 1:8 New International Version (NIV)
8 But even if we or an angel from heaven should preach a gospel other than the one we preached to you, let them be under God’s curse!
Mark 7:7-9 New International Version (NIV)
7 They worship me in vain;
their teachings are merely human rules.’
8 You have let go of the commands of God and are holding on to human traditions.”
9 And he continued, “You have a fine way of setting aside the commands of God in order to observe your own traditions!
2 Timothy 3:16 New International Version (NIV)
16 All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness
Sorry, but there is only one Holy Bible and Scripture. You can claim that the Catechism falls into this category, but the Bible disagrees.
"Sorry, but there is only one Holy Bible and Scripture. You can claim that the Catechism falls into this category, but the Bible disagrees."
You have evidently misunderstood how the Catholic Church regards the Catechism. It does not fall in the same category as Bible or Sacred Scripture. The Catholic Church believes in a "closed canon." No other Books could possibly be added to the Bible after the death of the last Apostle.