Remember what happened in the Bible after the death of King Solomon and the break-up of Israel into two kingdoms?
So that makes me correct.
See my above post, while it was not because oral tradition preserved the Word of God that brought about a national revival, but because of the wholly inspired-of-God written word:
And Hilkiah answered and said to Shaphan the scribe, I have found the book of the law in the house of the Lord. And Hilkiah delivered the book to Shaphan. (2 Chronicles 34:15)
Then Shaphan the scribe told the king, saying, Hilkiah the priest hath given me a book. And Shaphan read it before the king. And it came to pass, when the king had heard the words of the law, that he rent his clothes. (2 Chronicles 34:18-19)
And the king went up into the house of the Lord, and all the men of Judah, and the inhabitants of Jerusalem, and the priests, and the Levites, and all the people, great and small: and he read in their ears all the words of the book of the covenant that was found in the house of the Lord. And the king stood in his place, and made a covenant before the Lord, to walk after the Lord, and to keep his commandments, and his testimonies, and his statutes, with all his heart, and with all his soul, to perform the words of the covenant which are written in this book. (2 Chronicles 34:30-31)
For writing is God's chosen most-reliable means of preservation. ( Exodus 17:14; 34:1,27; Deuteronomy 10:4; 17:18; 27:3; 31:24; Joshua 1:8; 2 Chronicles 34:15,18-19; Psalm 19:7-11; 119; John 20:31; Acts 17:11; Revelation 1:1; 20:12, 15; Matthew 4:5-7; 22:29; Luke 24:44,45; Acts 17:11)
And as i abundantly evidenced , as written, Scripture became the transcendent supreme standard for obedience and testing and establishing truth claims as the wholly Divinely inspired and assured, Word of God. Thus the veracity of oral preaching subject to testing by Scripture, and not vice versa.