Jeremiah 11:3-4

and thou hast said unto them, Thus said JEHOVAH God of Israel: Cursed [is] the man who doth not obey the words of this covenant, That I commanded your fathers, In the day of My bringing them out from the land of Egypt, Out of the iron furnace, saying, Hearken to My voice, and ye have done them, According to all that I command you, And ye have been to Me for a people, And I am to you for God