Jamieson, Fausset and Brown on Jeremiah 26:12

12. Lord sent me--a valid justification against any laws alleged against him.

against ... against--rather, "concerning." Jeremiah purposely avoids saying, "against," which would needlessly irritate. They had used the same Hebrew word (Jr 26:11), which ought to be translated "concerning," though they meant it in the unfavorable sense. Jeremiah takes up their word in a better sense, implying that there is still room for repentance: that his prophecies aim at the real good of the city; for or concerning this house ... city [Grotius].