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.
٩ مَاذَا يُمْكِنُ ٱلْقَوْلُ عَنِ ٱلْأَثَرِ ٱلَّذِي يُمْكِنُ أَنْ يَتْرُكَهُ ٱلْمُسِنُّونَ ٱلنَّاضِجُونَ رُوحِيًّا فِي عَائِلَاتِهِمْ ؟‏