הַנָּבִ֞יא אֲשֶׁר־אִתּ֤וֹ חֲלוֹם֙ יְסַפֵּ֣ר חֲל֔וֹם וַאֲשֶׁ֤ר דְּבָרִי֙ אִתּ֔וֹ יְדַבֵּ֥ר דְּבָרִ֖י אֱמֶ֑ת מַה־לַתֶּ֥בֶן אֶת־הַבָּ֖ר נְאֻם־יְהוָֽה׃
The prophet that hath a dream, let him tell a dream; And he that hath My word; let him speak My word faithfully. What hath the straw to do with the wheat? Saith the LORD.
Rashi on Jeremiah
let him tell a dream Let him tell it as vain talk like other dreams, and let him not presume it as words of prophecy.
Rashi on Jeremiah
What has the straw to do with the wheat? What has falsehood to do with truth?