UGenesisi 17:19 IBhayibhili Elingcwele 19 UNkulunkulu wasesithi: “Umkakho uSara uzakuzalela indodana sibili futhi kumele uyinike ibizo elithi Isaka.*+ Ngizakwenza isivumelwano layo njalo sizakuba yisivumelwano esingapheliyo futhi sizasebenza lakuzizukulwane zayo ezizalandela ngemva kwayo.+ KwabaseRoma 9:7 IBhayibhili Elingcwele 7 Loba kunjalo, ukuthi bayinzalo ka-Abrahama*+ akutsho ukuthi bonke bangabantwana bakhe, kodwa kubhaliwe ukuthi, “Okuzathiwa yinzalo yakho* kuzavela ku-Isaka,”+ KumaHebheru 11:18 IBhayibhili Elingcwele 18 U-Abrahama wenza njalo lanxa wayetshelwe ukuthi: “Okuzathiwa yinzalo yakho kuzavela ku-Isaka.”+
19 UNkulunkulu wasesithi: “Umkakho uSara uzakuzalela indodana sibili futhi kumele uyinike ibizo elithi Isaka.*+ Ngizakwenza isivumelwano layo njalo sizakuba yisivumelwano esingapheliyo futhi sizasebenza lakuzizukulwane zayo ezizalandela ngemva kwayo.+
7 Loba kunjalo, ukuthi bayinzalo ka-Abrahama*+ akutsho ukuthi bonke bangabantwana bakhe, kodwa kubhaliwe ukuthi, “Okuzathiwa yinzalo yakho* kuzavela ku-Isaka,”+