Read Jeremiah 12:6 Using Other Translations
For even thy brethren, and the house of thy father, even they have dealt treacherously with thee; yea, they have called a multitude after thee: believe them not, though they speak fair words unto thee.
For even your brothers and the house of your father, even they have dealt treacherously with you; they are in full cry after you; do not believe them, though they speak friendly words to you."
Even your brothers, members of your own family, have turned against you. They plot and raise complaints against you. Do not trust them, no matter how pleasantly they speak.