JUSTIN BIEBER Sued By Ex-Bodyguard He Hit And Berated Me!

Bieber Bieber defeat the junk out of one of his Israeli security officers ... and berated the former knight after a conflict ... this according to a new court action. 

Biebs -- who's 5'7" and MAYBE 130 lbs -- is being charged by Moshe Benabou, an ex-member of the Israeli military. 

According to Benabou -- who statements he proved helpful for the musician from Goal 2011 to Oct. 2012 --  JB berated him and hit him in stomach area many periods during a conflict about how to deal with a participant of Bieber's entourage. 

Benabou is looking for unspecified loss for attack and power supply -- and more than $420,000 in overdue extra time. 

But resources in Bieber's camping tell TMZ ... Moshe is nothing more than a "disgruntled worker looking for cash." They say the declare that Bieber hit him is "absurd."

As for why Moshe was shot, our resources say he informed several can be found along with a big one -- that he had proved helpful carefully with Bieber Timberlake before being employed by Bieber. 

Our resources say it was found that he never proved helpful for JT a day in his lifestyle.

You may remember, Benabou was the guy who got into a actual conflict with a photog at LAX returning in Feb. After a brief battle, both men dropped to the floor ... and Benabou arrived a fairly strong impact while the pap was being controlled by another individual.