Scholarship committees are not only looking for good students, they are often looking for a person that fits their organizational goals. You should gather your other application materials such as transcripts and resumes so you can review your qualifications as well as make note of what is missing in these materials that needs to be included in the essay.
For example, if you're applying for a general academic scholarship, you might want to talk about a specific class you took that really piqued your interest or inspired your current academic and career goals. The committee will see the list of the classes that you took on your transcript but they won't know how a particular class inspired you unless you tell them