Text -- Isaiah 1:25 (NET)

1:25 I will attack you; I will purify your metal with flux. I will remove all your slag.

Commentary -- Verse Notes / Footnotes

NET Notes: Isa 1:25

¹ tn Heb “turn my hand against you.” The second person pronouns in vv. 25-26 are feminine singular. Personified Jerusalem is addressed. The idiom “turn the hand against” has the nuance of “strike with the hand, attack,” in Ps 81:15 HT (81:14 ET); Ezek 38:12; Am 1:8; Zech 13:7. In Jer 6:9 it is used of gleaning grapes.

² tn Heb “I will purify your dross as [with] flux.” “Flux” refers here to minerals added to the metals in a furnace to prevent oxides from forming. For this interpretation of II בֹּר (bor), see HALOT 153 s.v. II בֹּר and 750 s.v. סִיג.

³ sn The metaphor comes from metallurgy; slag is the substance left over after the metallic ore has been refined.