Didn't Commit, Did Confess

In Jer. 14:20 Jeremiah shows that he, as an individual, is responsible to confess ancestral and national sin, since he is a member of his people, for whom he is praying: Jeremiah 14:20, "We acknowledge our wickedness and the iniquity of our fathers.” No, he didn't commit the sins his people did. He didn't rebel against the Lord, worship false gods, and oppress the poor. But he did take part in confessing those sins on behalf of Jerusalem and Judah. 

Source: Dr. Gary S. Greig  -  The Biblical Foundations of Identificational Repentance as One Prayer Pattern Useful to Advance God's Kingdom and Evangelism, April 2001