Geshem

Or Gashmu, firmness, probably chief of the Arabs south of Palestine, one of the enemies of the Jews after the return from Babylon (Neh. 2:19; 6:1, 2). He united with Sanballat and Tobiah in opposing the rebuilding of the wall of Jerusalem.

and Gash’mu (rain), an Arabian, mentioned in (Nehemiah 2:19) and Nehe 6:1,2,6 (B.C. 446.) We may conclude that he was an inhabitant of Arabia Petraea or of the Arabian desert, and probably the chief of a tribe." Gashum said it" made him a type of those who create a common report.

ge'-shem (geshem, gashmu; Gesam, "rain storm"): An Arabian, probably chief of an Arabian tribe that had either settled in Southern Palestine during the exile in Babylon, or had been settled in or near Samaria by Sargon (Ne 2:19; 6:1,2,6). He was a confederate of Sanballat and Tobiah, and strenuously opposed the building of the wall under Nehemiah. He with the others mocked at the first efforts to build the wall, and afterward repeatedly sought to entice Nehemiah to the plains of Ono. The name also occurs in the form Gashmu, perhaps an Assyrian form of the same name Geshem.

J. J. Reeve