Passage
Who have said to seers, `Ye do not see,' And to prophets, `Ye do not prophesy to us Straightforward things, Speak to us smooth things, prophesy deceits,
Who have said to seers, `Ye do not see,' And to prophets, `Ye do not prophesy to us Straightforward things, Speak to us smooth things, prophesy deceits,
Isaiah 30:8 No, go in, write it on a tablet with them, And on a book engrave it, And it is for a latter day, for a witness unto the age,
Isaiah 30:9 That a rebellious people <FI>is<Fi> this, sons--liars, Sons not willing to hear the law of Jehovah.
Isaiah 30:10 Who have said to seers, `Ye do not see,' And to prophets, `Ye do not prophesy to us Straightforward things, Speak to us smooth things, prophesy deceits,
Isaiah 30:11 Turn aside from the way, decline from the path, Cause to cease from before us the Holy One of Israel.'
Isaiah 30:12 Therefore, thus said the Holy One of Israel, Because of your kicking against this word, And ye trust in oppression, And perverseness, and rely on it,
The verse centers on "said", "seers", "prophets", "prophesy", "straightforward", "things", "speak", and "smooth". It is saying that the verse draws attention to "said" and "seers", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "That a rebellious people FI is Fi..." into verse 11's "Turn aside from the way decline from...", so "said" and "seers" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "said" and "seers" with trust shaped by these words, not by a vague optimism outside the passage.