Charles Ellicott Commentary Jeremiah 7:27

"And thou shalt speak all these words unto them; but they will not hearken to thee: thou shalt also call unto them; but they will not answer thee." — Jeremiah 7:27 (ASV)

Therefore ... also. —Better, in both cases, though you will speak, yet they will not listen; though you will call to them, yet they will not answer you.