Surah Saba, Ayah 4

The Hour will come so that each Person will be rewarded or punished in accordance with His Deeds

This is one of three Ayat -- there is no fourth -- where Allah commands His Messenger to swear by His Almighty Lord that the resurrection will surely come, because the stubborn followers of disbelief denied that it would happen. One of these Ayat is in Surah Yunus, where Allah says:

وَيَسْتَنْبِئُونَكَ أَحَقٌّ هُوَ قُلْ إِى وَرَبِّى إِنَّهُ لَحَقٌّ وَمَآ أَنتُمْ بِمُعْجِزِينَ

(And they ask you to inform them (saying): "Is it true" Say: "Yes! By my Lord! It is the very truth! and you cannot escape it!") (10:53). The second of these Ayat is this one:

وَقَالَ الَّذِينَ كَفَرُواْ لاَ تَأْتِينَا السَّاعَةُ قُلْ بَلَى وَرَبِّى لَتَأْتِيَنَّكُمْ

لِّيَجْزِيَ الَّذِينَ آمَنُوا

(So that He rewards those who believed - 4)

This sentence is connected with the earlier one: لَتَأْتِيَنَّكُمْ that is, al-Qiyamah or the Doomsday is bound to come and its purpose will be to reward believers and to provide for them the best sustenance from Jannah (Paradise).

This Universe is an introduction to its Creator. Its terrifying vastness reveals the majesty of its Creator. The utter perfection of its harmony indicates that its Creator is a perfect and complete being. The perfect co-ordination between its various parts proves that the Being who controls it is extremely wise and all-knowing. The fact of the Universe being extremely congenial and conducive to the nourishment of human life clearly shows that its Creator is extremely kind and merciful towards His creation. One who ponders over the mysteries of the Universe will be totally absorbed in the realization of God’s majesty and perfection. He will be convinced that from the beginning of time till the end of eternity, all majesty pertains to the one and only God and to no other than Him.