Observations on the structure and organization of Sūrat al-Kāfirūn
Sūrat al-Kāfirūn (The Disbelievers) is a sūrah that the Messenger ﷺ would recite quite often. He was known to recite it during the two units of sunnah prayer before of Fajr, during witr, and during the two units of prayer done after going around the Kaʿbah.
It is said that the sūrah was revealed in Makkah during a time when the opposing Quraysh were attempting to coax the Messenger ﷺ into a compromise. They wanted to water down the message of Islam in exchange for their support. Sūrat al-Kāfirūn was revealed to emphatically rebut them.
What is beautiful about this sūrah is that it appears to be in a ring structure, with a couple of smaller structures comprising the internals.
[A]/[A’] - The sūrah begins with an address to “disbelievers”, and it ends with the conclusion of that address; “you have your religion, and I have mine.”
[B]/[B’] - The center has two declarations, each of which begin with the Messenger ﷺ saying something about himself, followed by him saying something about the disbelievers.
The central section, [B] and [B’], can be further broken up into its own mini-ring structure.
In both of these mini-rings, the position of the Messenger ﷺ (“I…”) sandwiches the position of the disbelievers (“you all…”).
It also appears that the sūrah is set up in a parallel structure when one considers the alternation between the negating and affirming segments of the āyāt.
Each statement begins with a negation (lā) and concludes with an affirmation. And this repeats across the four declarations in the center rings.
And Allah ﷻ knows best.