ואתה תדבר אל כל חכמי לב אשר מלאתיו רוח חכמה
Chachmei lev; “wise-hearted people,” is in the plural form. “Whom I have invested”; m’leisiv, is singular. Is Moshe Rabbeinu to speak to all of the wise-hearted people, collectively, or is he to speak to each one individually? Why does the pasuk change midsentence from plural to singular? Simply, this is referring to Moshe who personally merited to be filled with wisdom. He was to speak to the wise-hearted people, because he was especially filled with wisdom. The Chasam Sofer explains that mileisiv applies to the chachmei lev. Hashem instructed Moshe to speak to each individual craftsman to inform him that…