וְֽחַנְפֵי־לֵ֭ב יָשִׂ֣ימוּ אָ֑ף לֹ֥א יְ֝שַׁוְּע֗וּ כִּ֣י אֲסָרָֽם׃
אָבער די זינדיקע אין האַרצן לײגן אָן צאָרן; זײ שרײַען ניט צו אים װען ער בינדט זײ.
Rashi
But the wicked of heart who are wicked—they bring about wrath; when suffering comes upon them, they curse and blaspheme,
Malbim
The insincerity of those who are not truly righteous might not show up during times of fortune; when they are well off they can afford the luxury of virtue. But as soon as misfortune strikes them, their hypocrisy comes to light.
Rashi
when He binds them with sufferings; therefore He does not heal them.