Jeremiah 11:3-4

And you shall say to them: Thus says the Lord, the God of Israel: Cursed is the man who will not listen to the words of this covenant, which I commanded to your fathers in the day when I led them away from the land of Egypt, away from the iron furnace, saying: Listen to my voice, and do all that I command you, and then you will be my people and I will be your God.