Isaac’s endurance was based on faith in God’s promise, faith that was instilled in him by his aged parents and later reinforced by Jehovah’s own word to him.
Ketekunan Ishak didasarkan atas iman akan janji Allah, iman yang ditanamkan oleh orang tuanya yang lansia dan belakangan diperkukuh oleh firman Yehuwa sendiri kepadanya.