UEksodusi 17:6-7

Bheka, ngiyakuma lapho phambi kwakho edwaleni laseHorebe; uyakushaya idwala, kuphume amanzi kulo, abantu baphuze. Wenze njalo uMose emehlweni amalunga akwa-Israyeli. Wabiza indawo ngokuthi iMasa neMeriba ngenxa yokuxabana kwabantwana bakwa-Israyeli nangenxa yokubuza kwabo uJehova ngokuthi: “Ingabe uJehova uphakathi kwethu noma qha?