ה֣וֹי הָאֹמְרִ֥ים לָרַ֛ע ט֖וֹב וְלַטּ֣וֹב רָ֑ע שָׂמִ֨ים חֹ֤שֶׁךְ לְאוֹר֙ וְא֣וֹר לְחֹ֔שֶׁךְ שָׂמִ֥ים מַ֛ר לְמָת֖וֹק וּמָת֥וֹק לְמָֽר׃ (ס)
Woe unto them that call evil good, And good evil; That change darkness into light, And light into darkness; That change bitter into sweet, And sweet into bitter!
Rashi on Isaiah
Those who say of the evil that it is good They praise idolators [var. idolatry], but they consider it evil to worship the Holy One, blessed be He, Who is good.
Ibn Ezra on Isaiah
Woe unto them that call, etc. They wish that these evils shall come, they are therefore like those that have no reason.
Rashi on Isaiah
who present darkness as light A thing which is destined to bring darkness upon them, they say, will bring light to them.