This is the 616th most frequent German word.
david
In German, "David" is a proper noun, typically used as a male given name, equivalent to "David" in English.
Here, 'David' is used as a proper noun, serving as the subject of the sentence.
David spielt gerne Gitarre.
David enjoys playing guitar.
In this sentence, 'David' is used as a proper noun to refer to a specific individual, further described by their association to a class.
Der David in meiner Klasse ist sehr fleißig.
The David in my class is very diligent.
Here, 'David' first refers to a person performing an action, and later it refers to King David from historical context.