To build Jerusalem

The working class (also labouring class and proletariat) are the people employed for wages, especially in manual-labour occupations and industrial work. Working-class occupations include blue-collar jobs, some white-collar jobs, and most pink-collar jobs. The working class only rely upon their earnings from wage labour, thereby, the category includes most of the working population of industrialized economies, of the urban areas (cities, towns, villages) of non-industrialized economies, and of the rural workforce.

In Marxist theory and socialist literature, the term working class is often used interchangeably with the term proletariat, and includes all workers who expend both physical and mental labour (salaried knowledge workers and white-collar workers) to produce economic value for the owners of the means of production (the bourgeoisie in Marxist literature).