Because ye despise this word — i.e., the message which Isaiah had delivered against the alliance with Egypt. We note how the prophet enforces it, as coming from that very Holy One of Israel of whom they were tired of hearing.
Related Commentaries of Isaiah 30:12
Isaiah 30:12
12 Wherefore thus saith the Holy One of Israel, Because ye despise this word, and trust in oppressionb and perverseness, and stay thereon: