The previous verses contained an account of the warnings from Allah to the people of Pharaoh. The present verses speak of their ignominious end, and of the success of the Israelites. The verse 137 said, "And We made the people, who were taken to be weak, the inheritors of the land, of easts and wests which We had blessed." The verse did not say, the people who were weak, rather it said, those who were taken as weak. It implies that those having Allah as their support can never be weak in the real sense of the word, though they may seem so from their apparent condition. People finally come to realise that they are not weak. It is because dignity and honour all belong to Allah. The verse has used the term inheritance for their domination in the land to indicate that like a son who deserves to be a real inheritor of his father's land and possessions, the Israelites were the real inheritors of the land and wealth of Pharaoh's people.
The words 'east' and 'west' have been used in plural perhaps to denote the different points of sunset and sunrise in winter and summer time. The word 'land', according to all experts in exegesis, refers to the land of Egypt and Syria which was brought under the domination of the Israelites after the people of Pharaoh and the Amaleks were destroyed. The phrase 'Which We had blessed' refers to the lands of Syria and Egypt. The Holy Qur'an has referred to Syria as the land of Barakah (blessing). Similarly the land of Egypt has been referred to as the land of blessing in a number of Traditions. The Caliph 'Umar ibn al-Khattab ؓ has referred to river Nile as the prince of all rivers. The Companion ` Abdullah Ibn ` Umar ؓ said that Egypt has nine parts of blessing out of ten. The tenth part has been divided throughout the earth. (Al-Bahr-a-Muhit)
In short, the verse has to say that the people who were considered weak and abject were made the rulers of the land possessed by those who showed arrogance. It shows how the promise made by Allah and His Messenger came out true as it always does. The verse said, 'The sublime word of your Lord was fulfilled.' The promise in this verse either refers to the promise made by the prophet Musa (علیہ السلام) with his people mentioned in verse 129 which said, 'It is very likely that our Lord will destroy your enemy and make you successor in the earth.' Or it refers to the promise made by Allah to the Israelites in a verse of Surah Al-Qasas (the Stories) It said, "
وَنُرِيدُ أَن نَّمُنَّ عَلَى الَّذِينَ اسْتُضْعِفُوا فِي الْأَرْضِ وَنَجْعَلَهُمْ أَئِمَّةً وَنَجْعَلَهُمُ الْوَارِثِينَ ﴿5﴾ وَنُمَكِّنَ لَهُمْ فِي الْأَرْضِ وَنُرِيَ فِرْعَوْنَ وَهَامَانَ وَجُنُودَهُمَا مِنْهُم مَّا كَانُوا يَحْذَرُونَ ﴿6﴾
"And it was Our will that We favour those considered weak in the earth and make them leaders, and make them the inheritors, and give them power in the land, and show Pharaoh, Haman and their armies, the very thing they dreaded." (28:5-6)
In fact, both the above promises are one and the same. The promise made by the prophet Musa (علیہ السلام) .1t obviously was derived by the promise of Allah. This favour of Allah upon the people of Israel was the reward of their patience, as the verse has specified saying 'Because they stood patient.' That is, they were favoured by Allah for their being patient in their distress. This has an understated indication that any people or individual following the same example, at any time and in any place, shall get the same reward. The prophet Musa (علیہ السلام) when making the promise of gaining the rule over the land had emphatically said that perseverance, patience and seeking help from Allah was the only key to success.
Sheikh Hasan al-Basri (رح) said that the verse suggested that in case one is not as powerful as to defend himself against an enemy, the best way to success is to remain patient. He said when a person who has been wronged, tries to take revenge on his own by doing wrong to his opponent Allah leaves him alone and lets him manage his own affairs, ending in success or facing a failure. On the contrary, when one seeks help from Allah against the affliction from others and remains patient, Allah opens the door of success upon him. As the above promise for the rule over the land was fulfilled by Allah, the same kind of promise Allah made with the people of the prophet Muhammad ﷺ in a verse of Surah Al-Nur:
'' وَعَدَ اللَّـهُ الَّذِينَ آمَنُوا مِنكُمْ وَعَمِلُوا الصَّالِحَاتِ لَيَسْتَخْلِفَنَّهُمْ فِي الْأَرْضِ كَمَا اسْتَخْلَفَ الَّذِينَ مِن قَبْلِهِمْ
"Allah has promised those of you who believe and do good deeds that he will make them inherit the land, as He had inherited those who were before them." (24:55)
As the Israelites witnessed the fulfillment of Allah's promise by having their rule over the land, similarly the Muslim Ummah witnessed the fulfillment of Allah's promise in the form of their sovereignty over the major part of the earth (Ruh al-Bayan). It is not justified to say that the Israelites did not observe patience, because when Prophet Musa (علیہ السلام) asked them to be patient they said that they were persecuted before and after he came to them. Firstly, because their patience against the constant persecution at the hands of Pharaoh and his people is a proven fact. Secondly, the above statement might not be a complaint but a simple expression of their grief. Thereafter, the verse said, وَدَمَّرْنَا مَا كَانَ يَصْنَعُ فِرْعَوْنُ وَقَوْمُهُ وَمَا كَانُوا يَعْرِشُونَ "And We destroyed whatever Pharaoh and his people used to build and what they used to raise high." This refers to the buildings they raised high and their trees etc. 'What they used to build' may also refer to their ill designs against the prophet Musa علیہ السلام 'What they used to raise high' is a reference to their mansions and to their trees.
The events discussed up to this point were related to the destruction of Pharaoh and his people. The next verses describe the victory and success of the Israelites followed by their insolence in spite of all the blessings they received from Allah. These verses provide a kind of solace to the Holy Prophet ﷺ against his grief at the obstinacy of the unbelievers, by showing the annoyance of the early prophets at the hands of their people.