Point in case, your paradigm prevents you from seeing that which us clearly obvious as it relates to the topic of the thread.
Jeremiah 18 is saying that if a nation, whom He has promised to establish and build up, rejects Him, He will not establish and build up that nation.
Thus is exactly what happened in the year following Jesus' ascension, from Acts 1-9. Jesus promised to return and establish His Kingdom, Israel as a nation rejects Him, Jesus cuts off israel, setting His plans for them aside to work with the Gentiles until the fullness of the Gentiles has been reached, after which He will resume working with Israel. This is why Paul was chosen, instead of sending the 12, because to reach those who didn't know any law, one had to teach a message the excluded the Law. The twelve only knew the law, and nothing else, as a means of salvation. Hence why Jesus revealed the mystery to Paul, and why Paul's message is completely different that the twelve's.
[MENTION=2589]Clete[/MENTION]