The SA Council of Churches (SACC) will investigate complaints against some of its North West members who have promised to support ANC leader Jacob Zuma in the upcoming elections, Beeld newspaper said on Friday.

"Nobody had a mandate to speak on our behalf. I want to make it very clear that the SACC does not have any candidate or party of preference," SACC general secretary Eddie Makue said.

He said the organisation had received complaints from some of its members following Zuma's meeting with several religious leaders in Mafikeng in the North West earlier this week.

Zuma reportedly said the church's support for the African National Congress was an "unequivocal biblical declaration that if God is for us, who can be against us".

This meeting came days after Zuma addressed the Rhema church during a service, a move that sparked much debate and saw several worshippers walk out.