Is The Church Just As Authoritative As The Bible?

The Catholic Church claims I Tim 3:15 (“the church … the pillar and ground of the truth”) proves the church is another source of religious authority on the same level as the word of God. It is true the church is “the pillar and ground of the truth,” but pillars and ground support / hold up something, in this case the truth. Pillars and ground are not the same as the truth they hold up. So the church is NOT the truth, neither the source of the truth, but the duty of the church (the saved people) is to support / uphold and teach the truth.The word of God is the sole source of the truth according to John 17:17 (“Sanctify them through thy truth: thy word is truth”). And the Bible gives us ALL the truth according to II Tim 3:16-17 (“All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, throughly furnished unto all good works”).If the Bible gives us everything we need to be spiritually perfect (complete), and provides us unto all good works, then the Bible is all we need when it comes to religious authority. We go by the Bible and the Bible alone.