[annalex]

The final say is God's and God's alone

I told you I agree with that. You just formulated what is wrong with Sola Scriptura.

[1000 silverlings]

God says that His word is perfect, and by perfect, He means sufficient, just as His grace is sufficient.(2 Cor 12:9)

Psalm 19:7

The law of the LORD is perfect, converting the soul: the testimony of the LORD is sure, making wise the simple.

[1000 silverlings]

By the way, John1:1 defines the Trinity, can't get more perfect than that.

[1000 silverlings]

Even Peter, after walked with the Lord and witnessing the Transfiguration, states that even so, there is a more sure way of knowing the Lord, and that is through the written Word

1 Peter

1:16 For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.

1:17 For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased.

1:18 And this voice which came from heaven we heard, when we were with him in the holy mount.

1:19 We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:

1:20 Knowing this first, that no prophecy of the scripture is of any private interpretation.

1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.