The answer to "what" is a thing.
The answer to "whom" is a person.
The pronoun "whom" functions as the object of a verb or a preposition.
The corresponding pronoun "who" functions as the subject of sentence or a clause.
The pronoun "what" functions as a subject or an object in a sentence.
A question with 'what' as the subject is answered with a noun for a thing.
A question with 'whom' as an object of a preposition is answered with a noun for a person.
Give the letter to Mary. to whom?The letter is for Mary. for whom?
What is used for things. Whom is used for a person.
A noun that answers the question "To Whom?" ot "To What?" or "For Whom?" or "For What?"
Proper nouns
an indirect object
Whom = ος / η / ο . Hope that answers your question.
In terms of sentence construction it is called the 'subject'.
The word that receives the action of the verb and answers the question "what" or "whom" is called the direct object.
the holy spirit
The indirect object in your sentence is Michelle. (It answers the question to whom or for whom.)
The answer to "what" must be a noun or a pronoun that refers to things. It could be the subject or direct object of the sentence. Ex. What ingredient is needed for the cookies? Sugar is needed. (Subject.) What is he buying? He is buying a car. (direct object.) For whom, the answer is going to be a person or people, and it will be the direct object of the sentence. (The answer for who would be the subject.) Ex. Whom are you taking to the dance? (Notice how you is the subject.) I am taking Bruno. (Bruno is the direct object of the sentence. (For who-- Who is taking Bruno to the dance? Bruno is still the direct object. I am taking Bruno. I is the subject.)
In speech and writing the answer to whom (and what) is a noun or pronoun. For example: Whom did John Doe accuse? Answer: He accused Bill Smithers. What did Jane Doe eat?Answer: She ate sirloin steak followed by raspberries with cream.