Sorry, I thought a mandate had been established.
As a proponent of Sola Scriptura, can you please cite the Scripture which says that the Bible is the sole authority? I can cite where the Church is the pillar and foundation of truth (1 Tim 3:15) and that the wisdom of God is to be made known to the principalities and the Powers in the Heavens through the Church (Eph 3:8-10).
Logical argument... which came first, the Bible or the Church? Obviously, the Church. The Church was given by Christ and the Bible was written and compiled through Her to be understood from Her Teaching Authority.
No serious student of Scripture could argue that Christ commissioned His Apostles to write the Bible and, through It, make disciples of all the nations. No. He gave us His Bride, the Church, and told His Apostles to make disciples of all the nations by Baptizing them in the Name of the Father, Son and Holy Spirit... the rite of Christian initiation.