My preachers are sent, I'm not a preacher. God's church follows John 14:12-17. Preaching in opposition to God's Word is a a slam dunk indication that you aren't His church.
Jesus said that his words would not pass away. He said nothing about just the written words.
So now Jesus was double-minded? What He caused to be written is different than what He spoke? In two posts Jesus is a liar so that Marian doctrine may be true. Who is interested in supplanting the Word of God with anything else? Teaching in contravention to God's Word makes you a teacher for that guy.
Who sent them? And what authorized person sent the ones before, and so on? You cannot point to an unbroken line back to the apostles. The real Church has something called "apostolic succession". Fake churches don't have that.
What He caused to be written is different than what He spoke?
You are being terribly silly. Please calm down.
To begin with, it's the Holy Spirit who caused Scripture to be written. Jesus never commanded the authorship of any book -- or are you referring to some oral tradition of Jesus, not found in Scripture?
Second, you misrepresent me, which is dishonest and discredits you. Oral tradition does not contradict written tradition. It amplifies and authenticates it.
Third, in disregarding the oral teaching of the apostles, you reject their written teaching in Scripture. You are unbiblical. This ought to bother you.