Abraham, Isaac, and Jacob could have visualized a grand future because God had promised that by means of their offspring, all nations of the earth would obtain a blessing.
لَا بُدَّ أَنَّ إِبْرَاهِيمَ وَإِسْحَاقَ وَيَعْقُوبَ تَصَوَّرُوا مُسْتَقْبَلًا زَاهِرًا بَعْدَمَا وَعَدَهُمُ ٱللهُ أَنْ تَتَبَارَكَ بِنَسْلِهِمْ جَمِيعُ أُمَمِ ٱلْأَرْضِ .‏