Jesus did not leave a Systematic Theology. Neither did the Rabbi s of the time. The Gospel as a new literary type. Historical Situation is quite different.
Middle East has different way of thinking.
We tend to be analytical, outline, structure, discursive. They tend to be pictoral, figutes of speech, graphic. Living under political occupation. Jesus speaking prophetically of present and future age. In the gospels, we have essentially an oral record in written form.