Isa 30:1-32. The thirtieth through thirty-second chapters refer probably to the summer of 714 b.c., as the twenty-nith to the Passover of that year.
Jewish ambassadors were now on their way to Egypt to seek aid against Assyria (Isa 30:2-6, Isa 30:15; Isa 31:1). Isaiah denounces this reliance on Egypt rather than on Jehovah. God had prohibited such alliances with heathen nations, and it was a leading part of Jewish polity that they should be a separate people (Exo 23:32; Deu 7:2).
take counsel - rather, as Isa 30:4, Isa 30:6 imply, “execute counsels.”
cover ... covering - that is, wrap themselves in reliances disloyal towards Jehovah. “Cover” thus answers to “seek to hide deeply their counsel from the Lord” (Isa 29:15). But the Hebrew is literally, “who pour out libations”; as it was by these that leagues were made (Exo 24:8; Zec 9:11), translate, “who make a league.”
not of - not suggested by My Spirit” (Num 27:21; Jos 9:14).
that they may add - The consequence is here spoken of as their intention, so reckless were they of sinning: one sin entails the commission of another (Deu 29:19).