HOW COME PAUL AND JESUS APPEARED IN THE BIBLE?

WHY PAUL AND JESUS IN THE BIBLE

If the book of the law was written by or given to Moses when Jesus and Paul were yet to be born or exist, if jesus read that ‘BOOK’ while he taught in the temple on the Shabbath; how come the words of Paul and Jesus came into that book of Law (New Testament)? Is it that the bible was updated after years to entertain them or the bible is updated yearly or centuries? If it was so; then it means that WORDS HAVE BEEN ADDED to it yet it was commanded in Deut 4:2: that Nothing should be added or removed from it…If it is updated yearly or after centuries; it also means that soon we will have:
‘THE BOOK OF POPE FRANCIS CHAPTER 1 VS 2’,
AMERICA CHAPTER 5 vs 6,
United Nations chapter 2:3, apart from this, WHICH IS THAT BOOK THAT WAS ORDERED TO BE OBEYED WHOLLY, WAS IT NOT THAT BOOK THAT WAS BEFORE JESUS AND PAUL?

The law is One, the Most-High is One…Apart from Him, there is none other. There is ONE LAW FOR ALL (Lev.24:22, Exo 12:49)