Did Jesus invent a new teaching Method with his parables?
NO!
Zahava, his parables dealt with mysteries in the New Testament, they are different from the ones in the Old Testament for they explain things not revealed in the Old Testament.
Matthew 11:25
At that time Jesus said, "I praise you, Father, Lord of heaven and earth, because you have hidden these things from the wise and learned, and revealed them to little children.
All who read their scriptures when Jesus taught his parables knew about the Kingdom from the prophets. Jesus’ parables contain information for his Kingdom in view. The information are for the those that can understand them, because they seek the Kingdom of God.
Jesus said to each of the seven churches in Rev 3-
"He who has an ear, let him hear what the Spirit says to the churches."
Jesus ministry of parables is prophesied-
Psalm 78
O my people, hear my teaching;
listen to the words of my mouth.
I will open my mouth in parables,
I will utter hidden things, things from of old-
what we have heard and known,
what our fathers have told us.
We will not hide them from their children;
we will tell the next generation
the praiseworthy deeds of the LORD,
his power, and the wonders he has done.
He decreed statutes for Jacob
and established the law in Israel,
which he commanded our forefathers
to teach their children,
so the next generation would know them,
even the children yet to be born,
and they in turn would tell their children.
Then they would put their trust in God
and would not forget his deeds
but would keep his commands.
They would not be like their forefathers—
a stubborn and rebellious generation,
whose hearts were not loyal to God,
whose spirits were not faithful to him.
Notice in verses 2-3, that his parables will sound like the Jewish “fathers”, and you can see that they do. You yourself said he does in post #9.
False Messiahs cannot reveal mysteries, they are unbelievers by definition and they never sound like the fathers, the ancestors of old. They always come with some new and unfamiliar doctrine.
Jesus’ parables had to do with the Kingdom to come, which was foretold in the Old Testament.