Today, the High Court in Johannesburg ruled that schools cannot promote one religion.
The case was brought by the OGOD organisation, arguing that there's religious bias in South African public schools.
But trade union Solidarity - which represents the six schools the case was brought against - says that the Constitution allows public schools to identify with one religion and promote it.
The court says it offends the Schools Act to promote only one religion.
The organisation's Hans Pietersen says they welcome this ruling.