Getting a might weak there. What difference does it make. It was the scriptures up to that point. He didnt tell them to refer to tradition did he. He told them to check with WHAT WAS WRITTEN to even see if what he taught was truth. Catholics on the other hand will take most any myth handed down by the higher ups in the cult.
“What difference does it make”
Everything.
You base your case on ‘the scriptures’, and yet cannot determine what was contained within ‘the scriptures’.
Asking the question, “what was written” raises the very next question - what exactly was written down that he’s referring to.