¹ tn The referent of אֵל גִּבּוֹר (’el gibbor, “mighty God”) is uncertain. The title appears only here and in 9:6, where it is one of the royal titles of the coming ideal Davidic king. (Similar titles appear in Deut 10:17 and Neh 9:32 [“the great, mighty, and awesome God”] and in Jer 32:18 [“the great and mighty God”]. Both titles refer to God.) Though Hos 3:5 pictures Israel someday seeking “David their king,” and provides some support for a messianic interpretation of Isa 10:21, the Davidic king is not mentioned in the immediate context of Isa 10:21 (see Isa 11, however). The preceding verse mentions Israel relying on the Lord, so it is likely that the title refers to God here.

² sn Isa 13-23 contains a series of judgment oracles against various nations. It is likely that Israel, not the nations mentioned, actually heard these oracles. The oracles probably had a twofold purpose. For those leaders who insisted on getting embroiled in international politics, these oracles were a reminder that Judah need not fear foreign nations or seek international alliances for security reasons. For the righteous remnant within the nation, these oracles were a reminder that Israel’s God was indeed the sovereign ruler of the earth, worthy of his people’s trust.

³ tn Heb “The message [traditionally, “burden”] [about] Babylon which Isaiah son of Amoz saw.”

⁴ tn Heb “he teaches him the proper way, his God instructs him.”

⁵ tn Heb “but the word of our God stands forever.” In this context the divine “word” specifically refers to his decreed promise assuring Jerusalem that her suffering is over and his glorious return imminent (vv. 1-5).

⁶ tn The rhetorical question is sarcastic. The sense is, “Who is foolish enough…?”