As a note to the first verse which to me is my favorite verse in the Quran.
In Arabic, the same word is used for both title and name. What's the difference between name of God and a title of God? It seems the name of God is a chosen title from titles.
But what title will be chosen, when many are synonymous and in which language?
"By" suggests we can somehow hold on to and are connected to "the name of God" which to me is a metaphor for the reminder and Imams - the rope of God reality - Quran and Ahlulbayt in our time - the face of God, his light -"The Compassionate" is such that he wants everyone to come to his mercy "The Compassionate (2nd time)" is that he is intensely compassionate, and this is what he created us all for, but only believers will receive the 2nd for, while the first form means God wants everyone to meet the 2nd form.
In Surah Fatiha, this line appears alone. In every other Surah it has other words added with it.
For example, the 2nd Surah it's
By the name of God, the Compassionate, the Compassionate (intensely) Alif Lam Meem.
There is 114 verses that have this line in Quran, twice in Surah Naml, and all but one Surah all begin to be making a statement about this and begin with it.
It said all the Quran is somehow contained in this one verse.