@evan agreed, and that's basically what South Africa is saying.
https://accuracy.org/release/world-court-orders-israel-to-abide-by-genocide-convention-and-stop-killing/ had an interesting perspective on this:
"A ‘ceasefire’ is what you demand in an armed conflict. In a genocide you demand an immediate end to all genocidal acts and that is exactly what the ICJ ordered with immediate effect."