He speaks not of the words of their mouths; for none could be so mad of impudent as to have or profess a desire to be cheated, but of the language of their actions. They do so discourage and threaten God's faithful prophets, and so encourage their own false prophets, as if they had rather be deceived to their destruction, than hear the truth for their preservation and salvation. They prefer the pleasing of their humours before the saving of themselves.
Related Commentaries of Isaiah 30:10
Isaiah 30:10
10 Which say to the seers, See not; and to the prophets, Prophesy not unto us right things, speak unto us smooth things, prophesy deceits: