There a stark change in direction from previous verses speaking of those who are doomed to reminding us of the resting place of those who have iman AND inclined toward/do good deeds (an essential combination). I'm always struck by the love that Allah has for the prophet (SAW) when he defends His beloved messenger so vehmently in verses such as verse 15.
Verse 17 reminds me of a confidence believers are given which can relate back to the adab of debate alluded to in verse 8. The confidence is that, in the end, when all that was described in the very beginning verses happens, the search for truth will come to an end and Allah will give the final verdict. It is relieving because it leaves the ultimate result to Allah.
It should be noted that the only species that can lay all of its extremities on the floor, allowing for perfect sujood, are human beings. It's also noted that all the mentioned creation (sun and moon, stars, mountains, trees, and animals) have particular patterns, some that will not be disturbed UNTIL the day of judgement. The sun and moon both rise and set, trees shed their leaves and exchange carbon dioxide for oxygen, animals eat, sleep and hunt. 

The main purpose of Hajj is to ‘remember Allah’

-10 days of dul-Hijjah, Allah says: 

   'That they may witness benefits for themselves and mention the name of Allah on known days…..'[hajj:28]

-in Muzdalifa, Allah says:

 'But when you depart from 'Arafat, remember Allah at al- Mash'ar al-Haram. And remember Him, as He has guided you, for indeed, you were before that among those astray.[Al-Baqara:198]

-days of Tashreeq , Allah says : 

'And remember Allah during [specific] numbered days. …[Al-Baqara:203]

-when slaughtering Qurbani

' And for all religion We have appointed a rite [of sacrifice] that they may 'mention the name of Allah ''over what He has provided for them of [sacrificial] animals. '[Al-Hajj:34]

'  Their meat will not reach Allah, nor will their blood, but what reaches Him is piety from you. Thus have We subjected them to you that you may glorify Allah for that [to] which He has guided you; and give good tidings to the doers of good.'[Al-Hajj:37]

- End of Hajj, Allah says:

' So when you have accomplished your Manasik [(i.e. Ihram, Tawaf of the Ka'bah and As-Safa and Al-Marwah), stay at 'Arafat, Muzdalifah and Mina, Ramy of Jamarat, (stoning of the specified pillars in Mina) slaughtering of Hady (animal, etc.)]. ''Remember Allah as you remember your forefathers or with a far more remembrance.' '[Al-Baqara:200]

In verse 1, put simply, God did not come to play. Allah sets the scene for very serious warnings. Allah uses the world 'zalzalat' in reference to the Day of Judgement, and while it refers to the physical quaking/shaking of the Earth, we can understand it as so awe-strikingly terrifying that it 'shakes' each creation of Allah; human, jinn, animals, and even mountains.
In the second verse, Allah describes events we find incredibly off-putting in the dunya. We frown upon the drunkard in the street and we could not even imagine our disgust at the mother who leaves her child in harm's way willingly and we are grief-stricken by the thought of a woman miscarrying. The severity of these events, again reflect the severity of the events of the Day of Judgement. I often find myself saying that the best time to understand the true nature of someone is in the extreme circumstances (usually stress). That's when the nature of the heart shows (is the person truly patient? Merciful? Steadfast? etc). In the extreme stress of that Day, the true nature of mankind will show. That true nature is one of khashya (awe-inspiring fear) of Allah, one of undenounced belief in the One Lord and in His qualities that are neither restricted or bound by any physical law. 
The miscarriage portion is interesting in that we understand physiologically that extreme emotional stress can result in spontaneous abortion. But interesting to note is that, at that point, there is no more earth for that possible child to dwell in the first place. #DayofJudgement  #SuratAlHaj 

One of the first things we learn about are the stories of Prophets. And one of the first things we forget about as we grow in our knowledge of the complexities of Islam are... the stories of the prophets (may Allah's blessing be on them). It's very interesting because they are a wrought reminder to us of the very patterns of self-destruction that exist today. From heedlessness to arrogance to sticking to the status quo because it was 'what our forefathers left us' aka 'all we've ever known.' I'm reminded of the understanding that Allah does not destroy a nation unless it is unjust/oppressive, whether a Muslim nation or Kaffir nation. #SuratAlHaj