e'-fa (`ephah, "darkness"; Gephar (Ge 25:4), Gaipha (Isa 60:6): The name of three persons in the Old Testament, both masculine and feminine
(1) The son of Midian, descended from Abraham by his wife Keturah (Ge 25:4 = 1Ch 1:33), mentioned again in Isa 60:6 as a transporter of gold and frankincense from Sheba, who shall thus bring enlargement to Judah and praise to Yahweh. According to Fried. Delitzsch, Schrader, and Hommel, `Ephah is an abbreviation of `Ayappa, the Kha-yappa Arabs of the time of Tiglath-pileser III and Sargon. See treatment of this view in Dillmann's Commentary on Gen (Isa 25:4).
(2) A concubine of Caleb (1Ch 2:46).
(3) The son of Jahdai, a descendant of Judah (1Ch 2:47).
Charles B. Williams