Easton's Bible Dictionary A remnant shall escape or return (i.e., to God), a symbolical name which the prophet Isaiah gave to his son (Isaiah 7:3), perhaps his eldest son. Int. Standard Bible Encyclopedia SHEAR-JASHUB she-ar-ja'-shub or jash'-ub (she'ar yashubh, "a remnant shall return"; Septuagint ho kataleiphtheis Iasoub): The son of Isaiah, who accompanied him when he set out to meet Ahaz (Isaiah 7:3). The name like that of other children of prophets (compare "Immanuel," "Mahershalal-hash-baz," "Lo-ruhamah," etc.) is symbolic of a message which the prophet wishes to emphasize. Thus Isaiah uses the very words she'ar yashubh to express his oft-repeated statement that a remnant of Israel will return to Yahweh (Isaiah 10:21).

Multi-Version Concordance Shearjashub (1 Occurrence) 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. (WEB KJV)