The Confession itself explains the place of Scripture and tradition.
The Reformers acknowledged that church councils stand under the authority of Scripture, and can sometimes err. A conciliar decree is authoritative only insofar as it is true to Scripture. Yet, given the weight of orthodox judgment and catholic consensus, individuals and churches do well to follow the example of the Reformers and accept as faithful interpretations and entailments of Scripture the decisions of the councils of Nicaea (325), Constantinople (381), Ephesus (431), and Chalcedon (451) concerning the nature of the Triune God and Jesus Christ.
It is difficult for someone with my Catholic mindset to grasp this.
A Concilliar decree is authoritative only insofar as it is true to Scripture. But I believe the people who signed the Confession would cite certain 4th century councils as confirming which books are in the New Testament, and not other councils that might appoint a different canon. Circular reasoning?
Councils teach us how to interpret scripture, whether it be Nicea, Vatican II, or gnostic councils. If they are reliable only to the extent the interpretation is scriptural, every council would by definition be reliable, and no council would “sometimes err” - unless there is a living Authority third party, outside Scripture and Tradition, who can deem that. You can refer to the weight of orthodox judgement and catholic consensus, but who, exactly, does the weighing?
What if the majority of Christians in Utah did the weighing in terms of what is orthodox judgement and consensus?