Surah Saba' ayat 51-54 : 52. And they will say (in the Hereafter): "We do believe (now)

The Non believers wishes to return to this worldly life

34. Surah Saba' (Sheba)

In the Name of Allah, The Most Gracious, Most Merciful

51. And if you could but see, when they will be terrified with no escape (for them), and they will be seized from a near place.

52. And they will say (in the Hereafter): "We do believe (now);" but how could they receive (Faith and the acceptance of their repentance by Allah) from a place so far off (i.e. to return to the worldly life again).

53. Indeed they did disbelieve (in the Oneness of Allah, Islam, the Qur'an and Muhammad ) before (in this world), and they (used to) conjecture about the unseen [i.e. the Hereafter, Hell, Paradise, Resurrection and the Promise of Allah, etc. (by saying) all that is untrue], from a far place.

54. And a barrier will be set between them and that which they desire [i.e. At-Taubah (turning to Allah in repentance) and the accepting of Faith etc.], as was done in the past with the people of their kind. Verily, they have been in grave doubt.