Three leaders of a Korean church in Sydney have been jailed for bashing a young woman who failed to regularly attend services.

A pastor and two bible studies teachers bashed a 19-year-old Korean girl because they thought she had been disrespectful to her parents and had stopped attending church.Chi Yeong Yun, a junior pastor at the Open Door Presbyterian Church in Chatswood, and bible study teachers James Kang and Tom Chae-Young Lee pleaded guilty yesterday to assaulting Angela Kim at a park at Sydney's Bobbin Head in July last year.

The brutal beating left her with deep purple bruises all over her body but a priest and two Bible studies teachers claim they were just trying to "help" the girl realise she should go to church.