Evidently history is not your cup of tea.
And where is your definitive proof the Bible-alone is the highest authority? Kindly show me where Jesus agrees with you?
During Jesus time and before, the authority was from the holy scriptures.
Jesus quoted alot of scriptures as an authority of his mission and actions, and reverence to God. Here are some examples:
Mark:12:24: And Jesus answering said unto them, Do ye not therefore err, because ye know not the scriptures, neither the power of God?
Mark:14:49: I was daily with you in the temple teaching, and ye took me not: but the scriptures must be fulfilled.
Luke:4:17-18: And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written, the Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor…
Luk:4:20: And he closed the book, and he gave it again to the minister
Luk:4:21: And he began to say unto them, This day is this scripture fulfilled in your ears.
Luke:24:44: And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me.
Luk:4:3: And the devil said unto him, If thou be the Son of God, command this stone that it be made bread.
Luk:4:4: And Jesus answered him, saying, It is written, That man shall not live by bread alone, but by every word of God.
Jesus used the OT scriptures to authenticate his Messianic mission. He used the same Scriptures to defeat the devil.
In Matt 28:20: Just before Jesus ascension, he commanded his disciples to, “make disciples and teach them to observe all things which he had commanded them…”
This is where the doctrine of scripture-alone and scripture = tradition loose one another.
Traditions were also there during the OT, but Jesus did not refer to them.