The Cult of Kek is a cyber-religion based on the ancient Egyptian deity Kek.  It is believed that Pepe the Frog is the modern incarnation of Kek.  Adherents of the Cult of Kek are called Topkekkers after Topkek meme.  Another name for the Cult of Kek is Esoteric Kekism.
An Italian Disco Song titled 'Shadilay' by the performer P.E.P.E. (Point Emerging Probably Entering) has been dubbed the ode to the Cult of Kek 
In the early 2010s, the image of Pepe the Frog began circulating on image boards like 4chan. Around the same time, the acronym lol became replaced by kek to express favor about a post. By 2015, Pepe emerged as the unofficial mascot of the 4chan /POL/ message board (otherwise known as the politically incorrect message board). When Donald Trump announced his intention to run for President of the United States, he became to unofficial candidate of the /POL/ message board due to his politically incorrect rhetoric.  Donald Trump retweeted this photo of him as pepe with a Can't Stump the Trump video linked: 
After doing so, Hillary Clinton supporters began to attack Pepe and his followers calling them hateful right wingers.
Throughout the Trump campaign, a trend started to appear on 4chan /POL/ message board; the 8 digit stamps that are randomly generated on 4chan began to numerically end in repeating numbers such as dubs, trips, and quads more often than usual. In 4chan culture, repetitive numbers are seen as a good omen that is celebrated as GETs. 
On June 19, 2016, a few days after the Democratic primary closed and Hillary Clinton became Trump's general election opponent, a supposed prophecy appeared; a post stamped 77777777 contained the words 'Trump will win.' 
By September, it was discovered that Kek was a name for the ancient Egyptian deity of chaos and the unknown. Kek is depicted in male form as a man with a frog head and in female form as a woman with a snake head, and is represented "as a symbol of darkness, Kuk also represented obscurity and the unknown, and thus chaos." Coincidentally, 4chan is known to be a dark spot on the internet where controversial opinions and offensive shitposting, relative to mainstream discourse, are openly discussed on a daily basis. 
The theory goes that Kek used 4chan as a medium to channel energy from its millions of users to bring forth a golden age since " Kek was seen as that which occurred before light, thus was known as the bringer-in of light."
Cult of Kek adherents reference a description of a frog in numerous parts of Carl Jung's work as proof of the legitimacy of kek.
In The Red Book, Carl Jung wrote about his experiences when he 'switched off consciousness' and invoked fantasy in a waking state. The image of the frog was a powerful and meaningful archetype that Jung documented numerous times in his writings. In one instance, he wrote "You shall experience even more of it. You are in the second age. The first age has been overcome. This is the age of the rulership of the son, whom you call the Frog God. A third age will follow; the age of apportionment and harmonious power."  The first age represents the old order being demolished which is followed by a second age where 'the Frog God' presides of a transition that ushers in a thrid and final golden age of harmony. [✔]
From the Cult of Kek Facebook group:
"Our Kek who art in memetics
Hallowed by thy memes
Thy Trumpdom come
Thy will be done
In real life as it is on /pol/
Give us this day our daily dubs
And forgive us of our baiting
As we forgive those who bait against us
And lead us not into cuckoldry
But deliver us from shills
For thine is the memetic kingdom, and the shitposting, and the winning, for ever and ever.
Critics say that the Cult of Kek is a satirical religion that has no significance in reality. The cite the fact that there is no scientific proof of Kek, or any god for that matter, in the world and that the many coincidences associated with Kek are just coincidences; correlation does not equal causation.