I am a Principal of a pvt sector KG - G12 school....

We would like to inform you that what you mentioned is considered violation to the Labor Law and the work Contract and therefore the law provides legal protection for wages in the articles below:
 
Article (56)

Workers who are hired at an annual or monthly wage are paid at least once a month and all other workers are paid at least once every two weeks. Thus, if there is a violation in the employment contract, he may go to the Ministry of Labor and file a complaint and then leave the work according to
 
Article (121):
 A worker may leave work without notice in one of the following cases:
1-    If the employer violates his obligations before the worker in the articles stipulated in the contract or the law.
2-    If the employer or his legal representative signs an assault on the worker.

Thus, you can file a complaint at the Labor Office and explain the matter in detail as it the competent authority in resolving labor disputes.
You can also submit your complaint electronically by entering this link Labor complaint (Tzahil)