Shepham is the easternmost boundary of the Israelite territory.
Num 34:10Your eastern boundary shall be drawn from Hazar-enan to Shepham.Num 34:11The boundary shall go down from Shepham to Riblah on the east side of Ain, and shall go down and strike the east side of the Sea of Chinnereth.
Zabdi was from this place.
1 Chr 27:27Shimei the Ramathite was in charge of the vineyards, and Zabdi the Shiphmite was in charge of the produce of the vineyards for the wine cellars.