Jeremiah 12:15-16

And it shall come to pass, after that I have plucked them up, I will return and have compassion on them; and I will bring them again, every man to his heritage, and every man to his land. And it shall come to pass, if they will diligently learn the ways of my people, to swear by my name, As Jehovah liveth; even as they taught my people to swear by Baal; then shall they be built up in the midst of my people.