"Fulfilling" the Law: How Yeshua Equates the Perpetuity of the Jewish People with the Perpetuity of the Mosaic Torah

It occurred to me today that Yeshua might've equated the Jewish People with Mosaic Torah.  Observe the following passages and see if you come to the same conclusion:

Matthew 5:17-18

"17 Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.

18 For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled."

Jeremiah 31:35-36

"35 Thus saith the Lord, which giveth the sun for a light by day, and the ordinances of the moon and of the stars for a light by night, which divideth the sea when the waves thereof roar; The Lord of hosts is his name:  36 If those ordinances depart from before me, saith the Lord, then the seed of Israel also shall cease from being a nation before me for ever."

Christians like to say that the Mosaic Law has been abrogated.  But if the Mosaic Law defines the Jewish People then it cannot be abrogated--or else the Jewish People would be abrogated along with it. Yeshua seems here to illustrate the Judaic belief that Torah, Covenant, and People are correlative.  Thus, He not only defends the perpetuity of Mosaic Law but He defends the perpetuity of the Jewish People.

And if these concepts are correlative, then He also came to "fulfill" the Jewish People.  What does that mean?  Well, to make something full is to add something to it.  One wouldn't say that a glass of water that was full had been terminated or reduced in any way.  One would say that filling a glass added something to it, helped it to serve its purpose.  A glass is meant to hold liquid.  So when you fill it up you are helping it achieve the purpose for which it was designed.  In the same way, Yeshua came to help Israel achieve the purpose for which it was designed.