There is a lot of biblical parallels in KOTM and considering that Abaddon, Behemoth and Leviathan exist in the Monsterverse, it's definitely not unintentional. I don't know very much about the Bible so if I get some things wrong feel free to correct me.
For those unaware, the Book of Revelation is the last book of the Bible and it describes an apocalypse and how God eventually triumphs over evil.
Right off the bat, there is of course the cross in the scene where Ghidorah does his alpha call. In the Book of Revelation, the Sea Beast rises out of the sea and miraculously heals its wounded head. Who does that remind you of?
"And I saw one of his heads as it were wounded to death; and his deadly wound was healed: and all the world wondered after the beast."
In Dante's Inferno, Satan is described as having three faces on one head and bat-like wings that eternally flap and create cold hurricanes. It's also said that Satan or Lucifer is imprisoned in a frozen lake in the Ninth Circle of Hell, just like how Ghidorah was frozen.
This line from the Book of Revelation that's technically related for Abaddon also works for Ghidorah awakening in KOTM.
"He opened the shaft of the bottomless pit, and from the pit rose smoke like that from a great furnace, and the sun and the air were darkened."
In the Biblical apocalypse, there are seven seals, seven trumpets, and seven bowls which unleash chaos and devestation upon the planet. There are famines, wars, death, plagues, earthquakes and so on. Some of these may relate to some of the Titans. But firstly, the 2nd trumpet is something about a burning mountain falling into the sea and killing a third of all sea life while also turning a third of the oceans to blood. I think this could be the oxygen destroyer and the effects it had on the sea around it.
The 5th trumpet is about the angel of the abyss Abaddon (also sometimes referred to as a bottomless pit) unleashing a swarm of deadly locusts upon humanity. The victims of said locusts are unable to die. This of course relates to Titanus Abaddon and it's swarm of giant spiders. I think the whole not dying thing is meant to be when Abaddon's minions take control of corpses. It's almost like their victims are unable to fully die even after being killed.
The 4th trumpet and 6th seal relate to the sun being blocked out and a third of the planet being plunged into darkness. This I think is Camazotz who's goal is to shroud the sun in darkness.
A couple of the first few relate to the world's rivers being poisoned and forests being destroyed. This could be Amhuluk for obvious reasons.
More parallels could be made between the Book of Revelation and the Titans but these are just the ones that I think are the most plausible. Also there's the Battle of Armageddon between God and the forces of evil which is probably the battle of Boston.