The sixth verse speaks about the return of mankind (to God) and His power over the resurrection after death. This is being done to refute those who disbelieve in it. Their belief has been mentioned in the earlier verse “Is it possible to be recreated after our bones dissolve in the earth?” Qura’n replies to them, “Do they not see who has created the heavens and the earth ands has the power to create the like of them?”
‘Have they not seen” or ‘do they not see” seeing means seeing in their heart so it will mean “Do they not know” the source of origin of this knowledge is the saying, “The command for similar things will be similar and if is possible then everything is possible and if it is not then nothing is possible”