'Written in the Book' in the Bible

The sons of those striking he put not to death: according as it was written in the book of the Laws of Moses which Jehovah commanded, saying, Fathers shall not be put to death for sons, and sons shall not be put to death for fathers; but a man shall be put to death in his sin.

And the rest of the words of Amaziah, are they not written in the book of the words of the days to the kings of Judah