To send a text message, use the Messages app , which syncs with your iPhone via iMessage. Are you interested in selling your current MacBook, or Create and work with documents on Mac - Apple Support

This might refer to creating a text file or message on your MacBook. Which of these Selling Your MacBook

If you are planning to "buy your (next) MacBook," consider where you get the best value:

If you want someone to "buy your MacBook," you are likely looking for the best way to offload your current laptop.

Students and teachers can often save money through the Apple Education Store . Creating Text on a MacBook If you literally meant "create text" using your MacBook:

This refers to the process of choosing and purchasing a MacBook from a retailer.