Rashi, on Isa 30:21

“And thy ears shall hear the word of one admonishing thee behind thy back: This is the way, walk ye in it: and go not aside neither to the right hand, nor to the left.”

“And your ears shall hear from behind you Not as you do now, that you despise My words and say, “You shall not prophesy for us true things” (verse 10), but your ears shall be bent also behind you to hear from Me, perhaps a prophet will come and instruct you the way to go, whether right or left.”

Imported from an open dataset — not yet checked against the printed edition.