Usually the description of an argument and its rebuttal need more than one paragraph. Whole books have been written arguing one single point.
Usually when you write you create a new paragraph when you open up a new topic, discuss a different aspect of a previous topic, take an argumentative detour, and so on. An experienced writer will "feel" a paragraph break in the same way they feel a sentence break.
So don't overthink it and just write. Create a new paragraph whenever you feel that you have "said something" and want to say something else. Sort of like drawing a breath and gathering your thoughts when you speak.
I may be mistaken, but your questions makes me think that maybe you have been asked to write an essay for school and are now struggling with understanding what is expected of you.
A common problem with students I see is that most of them have never read an essay in their lives and don't really know what to do. You can compare this to someone who has never seen another person swim or ride a bike and is told to get in the water and "swim" or use that metal contraption to "ride". Most people wouldn't know what to do.
In the same way you need to have read many examples of what you want to write to form an understanding of the specific form. So often the best recommendation in the case of question like yours is to read a couple of essays, because very likely you will know how paragraphs work from having seen a few.