IGenesisi 17:17-21

U-Abhrahama wakhothama wathi mbo ngobuso wahleka, wakhuluma yedwa wathi: “Indoda ingayizala kanjani ingane isinekhulu leminyaka na? USara angabe esakwazi ukuzala ingane esehlanganise iminyaka engama-90, na?” Wathi u-Abhrahama kuNkulunkulu: “Sengathi u-Ishmayeli angaphila phambi kwakho.” UNkulunkulu wathi: “Akunjalo; ngumkakho uSara ozokuzalela indodana; uyiqambe igama uthi ngu-Isaka. Ngiyosigcina isivumelwano sami nakuye, sibe yisivumelwano saphakade ngisho nasesizukulwaneni sakhe. Mayelana no-Ishmayeli ngisizwile isicelo sakho, naye ngizombusisa ngimuphe inzalo eningi, nezizukulwane eziningi. Uyakuba nguyise wamakhosi ayi-12, ngimenze abe yisizwe esikhulu. Kepha isivumelwano sami ngiyosimisa no-Isaka, ozomzalelwa nguSara ngalesi sikhathi, ngonyaka ozayo.”