Jeremiah 11:3

And say thou unto them
This shows that the command of publishing the law or covenant was, however, principally given to Jeremiah: thus saith the Lord, the God of Israel;
that made them, and brought them out of Egypt, and made a covenant with them, and had taken care of them, and had bestowed many favours upon them: cursed be the man that obeyeth not the words of this covenant;
which the prophet, it may be, had in his hands, even the book of the law, and held it forth unto them, while he was speaking; the language of which is, cursed is everyone that does not constantly and perfectly perform what is contained in it, ( Deuteronomy 27:26 ) .