Shear-Jashub

Shear-jashub (meaning: a remnant shall return or a remnant shall repent) was the son of the prophet Isaiah, who bore this name as a living prophetic sign. Isaiah was commanded by God to take his son with him when he went to meet King Ahaz at the conduit of the upper pool during the Syro-Ephraimite crisis (Isaiah 7:3), a period when Syria and Israel had besieged Jerusalem to force Judah into their anti-Assyrian alliance.

The child's name embodied a double-edged prophetic message: a warning that a remnant only — not all — would survive the coming judgment, and a promise that at least a remnant would return and be saved. This tension between judgment and hope runs throughout Isaiah's theology of the remnant. The concept is developed extensively in Isaiah 10:20–22 and becomes a key theme linking the prophetic ministry of Isaiah to Paul's exposition of election and salvation in Romans 9:27, where the prophet's words are cited to explain God's dealings with Israel.