Jeremiah 2:5

What iniquity have your fathers found— That is, "What injustice or unfaithfulness, in not performing my part of the Horeb covenant?" Walked after vanity, refers to their worship of idols. What an instance of goodness in God is it, that he would, as it were, render an account of his conduct to his people, and plead with them, as a man with his equal!