Jamieson, Fausset and Brown on Jeremiah 20:4

4. terror ... to all thy friends--who have believed thy false promises (Jr 20:6). The sense must be in order to accord with "fear round about" (Jr 20:3). I will bring terror on thee and on all thy friends, that terror arising from thyself, namely, thy false prophecies. Thou and thy prophecies will be seen, to the dismay both of thee and thy dupes, to have caused their ruin and thine. Maurer's translation is therefore not needed, "I will give up thee and all thy friends to terror."