יַכְרֵ֨ת יְהוָ֜ה לָאִ֨ישׁ אֲשֶׁ֤ר יַעֲשֶׂ֙נָּה֙ עֵ֣ר וְעֹנֶ֔ה מֵאָהֳלֵ֖י יַֽעֲקֹ֑ב וּמַגִּ֣ישׁ מִנְחָ֔ה לַֽיהוָ֖ה צְבָאֽוֹת׃ (פ)
Rashi on Malachi
one of acuity or erudition An ingenious one among the students, and one who can answer among the sages. עֵר An expression of an ingenious person.
Rashi on Malachi
and one who offers up an offering And if he is a priest, he will not have a son who offers up an offering.