Zilpah zil'-pa (zilpah, meaning uncertain; Zelpha): The ancestress of Gad and Asher (Genesis 30:10, Genesis 30:12, Genesis 35:26, Genesis 46:18), a slave girl of Leah's, given her by Laban (Genesis 29:24, Genesis 30:9). In Ezekiel 48:1 the Zilpah tribes have the 5th division toward the South of Palestine and the 6th to the North, a slightly more favorable position than that of the Bilhah tribes.