Related Rule
South Africa
Practice Relating to Rule 27. Religious Personnel
South Africa’s LOAC Manual (1996) provides: “Religious personnel of the parties to a conflict, whether military or civilian, are to be respected and protected.” 
South Africa, Presentation on the South African Approach to International Humanitarian Law, Appendix A, Chapter 4: International Humanitarian Law (The Law of Armed Conflict), National Defence Force, 1996, § 46. This manual is also included in Chapter 4 of the Draft Civic Education Manual of 1997.
South Africa’s Revised Civic Education Manual (2004) states:
62. … Religious Personnel. … [R]eligious personnel of the parties to a conflict, whether military or civilian, are to be respected and protected. This protection is not a personal privilege but rather a natural consequence of the rules designed to ensure respect and protection for the victims of armed conflict …
64. … [R]eligious personnel must abstain from all acts of hostility or they lose their protection. They are authorised to carry only light arms and have the right to use them only for their own defence or for that of the wounded and sick for whom they are responsible. 
South Africa, Revised Civic Education Manual, South African National Defence Force, 2004, Chapter 4, §§ 62 and 64.