Jeremiah 1:10

I have - set thee over the nations - God represents his messengers the prophets as doing what he commanded them to declare should be done. In this sense they rooted up, pulled down, and destroyed - declared God's judgments, they builder up and planted - declared the promises of his mercy. Thus God says to Isaiah, Isaiah 6:10 ; : "Make the heart of this people fat - and shut their eyes." Show them that they are stupid and blind; and that, because they have shut their eyes and hardened their hearts, God will in his judgments leave them to their hardness and darkness.