51-41
And in Aad (there is a sign) when We sent on them the barren wind (for their destruction).
Destruction of other communities is briefly mentioned.
51-47
And the sky, We constructed it with energy, and We are the Expanders (of it)*. [* See notes under Chapter 21, Verse: 30 & Verse:104]
This may refer to Expanding Universe.
51-48
And the earth, We have spread it. How Excellent are We in making it habitable!
This may refer to the Drifting continents.
51-49
And of everything We have created pairs that you may be mindful.
In the creation everything is in pairs but the Creator, Allah (SWT) is One.
51-50
So you all run towards Allah, I am a clear warner for you from Him.
Some instructions are given to Prophet Muhammed (PBH) and believers.
51-56
And I did not create the jinn and mankind but (with the sole purpose) that they should serve Me.
The purpose of creation of the jinn and mankind is that they should serve i.e. obey Allah (SWT), they do not have to provide for Him or feed Him, actually it is He Who provides.
51-59
So for those who are unjust, (their) portion will certainly be like the portion of their companions, so do not let them ask Me to hasten on (the punishment).
The consequence of the infidels is described.