Jamieson, Fausset & Brown, on Judg 3:15

“And afterwards they cried to the Lord, who raised them up a saviour called Aod, the son of Gera, the son of Jemini, who used the left hand as well as the right. And the children of Israel sent presents to Eglon king of Moab by him.”

“Ehud the son of Gera--descended from Gera, one of Benjamin's sons (Gen 46:21). left-handed--This peculiarity distinguished many in the Benjamite tribe (Jdg 20:16). But the original word is rendered in some versions "both-handed," a view countenanced by Ch1 12:2. by him the children of Israel sent a present unto Eglon the king of Moab--the yearly tribute, which, according to Eastern fashion, would be borne with ostentatious ceremony and offered (Jdg 3:18) by several messengers.”

Imported from an open dataset — not yet checked against the printed edition.