Jeremias 11:3

3 and thou shalt say to them, Thus saith the Lord God of Israel, Cursed is the man, who shall not hearken to the words of this covenant,

Jeremias 11:3 Meaning and Commentary

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 ) .

Jeremias 11:3 In-Context

1 The word that came to Jeremias from the Lord, saying,
2 Hear ye the words of this covenant, and thou shalt speak to the men of Juda, and to the dwellers in Jerusalem;
3 and thou shalt say to them, Thus saith the Lord God of Israel, Cursed is the man, who shall not hearken to the words of this covenant,
4 which I commanded your fathers, in the day wherein I brought them up out of the land of Egypt, out of the iron furnace, saying, Hearken to my voice, and do all things that I shall command you; so shall ye be to me a people, and I will be to you a God;
5 that I may confirm mine oath, which I sware to your fathers, to give them a land flowing milk and honey, as this day. Then I answered and said, So be it, O Lord.

The Brenton translation of the Septuagint is in the public domain.