|Easton's Bible Dictionary|
(1.) The third of Issachar's four sons (1 Chronicles 7:1); called also Job (Genesis 46:13).
(2.) Ezra 10:29.
Int. Standard Bible Encyclopedia
ja'-shub, jash'-ub (yashubh; yashibh, in Chronicles, but Qere, yashubh, "he returns"):
(1) In Numbers 26:24 1 Chronicles 7:1, a "son" (clan) of Issachar. Genesis 46:13 has incorrectly Iob, but Septuagint Jashub.
(2) In Ezra 10:29, one of those who had married foreign wives = "Jasubus" in 1 Esdras 9:30.
(3) In Isaiah 7:3, part of the name SHEAR-JASHUB (which see).
Jashub (5 Occurrences)
Genesis 46:13 The sons of Issachar: Tola, Puvah, Iob, and Shimron. (See NIV)
Numbers 26:24 of Jashub, the family of the Jashubites; of Shimron, the family of the Shimronites. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Chronicles 7:1 Of the sons of Issachar: Tola, and Puah, Jashub, and Shimron, four. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Ezra 10:29 Of the sons of Bani: Meshullam, Malluch, and Adaiah, Jashub, and Sheal, Jeremoth. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Isaiah 7:3 Then Yahweh said to Isaiah, "Go out now to meet Ahaz, you, and Shearjashub your son, at the end of the conduit of the upper pool, on the highway of the fuller's field. (Root in WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)