1)
Why did he say "I will pray... like your words"?
1.
Malbim: According to your request - I will ask the best route to take to Egypt.
2)
What is the Chidush that Yirmeyah will tell them everything that Hashem says?
1.
Malbim: Also if He says that you should remain in Eretz Yisrael and not go, I will tell you.
