YHVH

YHVH, also known as Yehowah, is an important figure in the Shin Megami Tensei series. He is often seen as a firm and lawful, if not ruthless, figure who holds little empathy towards humanity.

History
YHVH, commonly known as the Tetragrammaton - Greek for "four-letter word", is claimed to be the Hebrew name of God. There are many variations even within the Hebrew scriptures as to the pronunciation as well as spelling of the word, and this continues to be the subject of debate to this day. The spelling YHVH comes from the Hebrew spelling of Jehovah, Yehovah, with the vowels removed.

Appearances

 * Megami Tensei II: Final Boss (Yuiitsukami Clan)
 * Kyūyaku Megami Tensei: Final Boss (Kami Clan)
 * Shin Megami Tensei: Mentioned
 * Shin Megami Tensei II: Final Boss (Shinrei Clan)
 * Shin Megami Tensei: Nocturne: As Kagutsuchi (or "The Great Will")
 * Shin Megami Tensei: Strange Journey: Mentioned as "The Lord" and is implied to be Demiurge
 * Devil Summoner: Raidou Kuzunoha vs. King Abaddon: God and mentioned by both Camael and Louis Cyphre
 * Devil Survivor: Mentioned as Yehowah

Profile
Throughout Shin Megami Tensei series, YHVH is characterized as a vain dictator who has created the universe in such a way that it will be subjugated under him forever. Lucifer rejected YHVH's authority and took one-third of the heavenly host to revolt against YHVH; however, Lucifer was defeated and banished to the demon world, falling from grace and subsequently becoming the lord of the demon world. YHVH is commonly referred as the "true enemy" throughout the series by Lucifer.

Megami Tensei II
YHVH is encountered atop a corporate skyscraper overlooking the Ginza. The CEO is actually Satan in human guise. You can pledge allegiance to YHVH or do battle with him, for a total of three possible resolutions to Megami Tensei II. This ending is not available unless the player performs a number of specific tasks, such as siding with the Heroine and sparing Bael to later fuse him with Beelzebub to create Baal, before encountering Lucifer.

(disclaimer: The above description is based on first hand game play of Kyūyaku Megami Tensei. Please read the next section for details)

Shin Megami Tensei
The protagonist can choose to the Lawful alignment in Shin Megami Tensei, where he aligns with YHVH. YHVH's plan is to create the Thousand Year Kingdom of God, and Utopia consists of new angels and ruled by YHVH. To do so, however, YHVH decides to cleanse the world, and sent Thor as an agent to destroy Japan.

YHVH plays a minor role towards the end of the game. In the Law alignment, the protagonist destroys the demons and helps YHVH institute his Thousand Year Kingdom. In the Neutral alignment, the protagonist destroys both angels and demons, hoping to create a new, free world raised by mankind. In the Chaos alignment, the protagonist can choose to align with Lucifer, where the protagonist destroys the angels and restore the olden gods. Lucifer eventually thanked him for doing so, but warns him to be careful, as the "true enemy" still exists.

Shin Megami Tensei II

 * Aeon Genesis translation
 * Aeon Genesis translation

YHVH appears as a respected figure in Shin Megami Tensei II, he is worshiped by the peoples of Tokyo Millennium. They are foretold that a savior will descend from God, and show the citizens salvation. Since the Messians running Tokyo Millennium are angels, and because the aforementioned 'savior' has yet to arrive, they began fearing that YHVH has abandoned them. They believed that, if they carried out the plans as YHVH foretold, YHVH would once again appear before them. In order to do so, they need a savior they could control. That savior is Aleph.

In ancient times, YHVH created Lucifer and Satan respectively, Satan was used as an instrument to judge the world, humans, angels and demons alike. However, Lucifer's pride allowed him to revolt against God, and was banished from heaven. Depending on Aleph's choices and alignments, he can either choose to side with YHVH, or to defy him and defeat him.

In the Neutral and Chaos alignment path, Satan decides to use the Megiddo Arc (a powerful laser weapon within Eden) to destroy all life on the planet as his judgment. He is killed by Aleph before he can carry out his plans, and his death prompts the appearance of YHVH. In the Law alignment, Satan will chose to align with Aleph, however, he crumbles to dust after defeating his creator. Should Aleph chooses to align with Lucifer, after defeating his creator, Lucifer will return to his angel form, after defeating YHVH. Lucifer does not crumble to dust like Satan, nowhere is this shown or even implied.

In the Chaos and Neutral alignments, prior to Aleph's battle with YHVH, he is forewarned that by defying God's Will, Aleph will suffer a never-ending cycle of punishment, as YHVH would torture Aleph, kill him, reincarnate him, and continue torturing him until the end of time for committing the 'Ultimate Sin' -defeating God. However, interestingly enough, in the Law alignment, YHVH never mentions sending Aleph to hell, instead only mentioning punishing Satan. Possibly even implying that these were self-inflicted punishments between YHVH and Satan on eachother, in fitting with the "self-sacrifice" theme of the Law ending.

Shin Megami Tensei III: Nocturne
While not being identified as YHVH, it is strongly implied that it can be brought back by the "Great Will", which Kagutsuchi is a part of. Kagutsuchi, in Shin Megami Tensei III: Nocturne is responsible for destroying and re-creating thousands of worlds in different times. He is largely responsible for the Conception, where the world is voided into a vortex world, recreating the world according to others' Reasons.

In the Maniax version of Shin Megami Tensei III: Nocturne unlocks an optional dungeon, namely the Labyrinth of Amala. In there resides Lucifer, where he would explain the Great Will's actions and the nature of the Conception. Since the Demi-fiend is neither human nor angel, he will be less likely to be blessed by God. At some point, the Lady in Black besides Lucifer would imply that being a demon, the Demi-fiend is doomed to be detested by God, however, even so, the fallen angel will bless him.

By venturing to the Fourth Kalpa of the Labyrinth of Amala, the Demi-fiend will be informed that Hijiri, a reporter who has assisted him throughout the story, actually died when the Conception occurred, having failed to reach the hospital in time. However, he continues to exist in the Vortex World in the body of a Manikin as his punishment for committing the "ultimate sin". Hijiri is trapped in an endless cycle of suffering, death and rebirth, being forced to witness the creation and destruction of each world without having any chance to affect the outcome. Due to this, it is there is speculation that Hijiri is a reincarnation of Aleph, the main character of Shin Megami Tensei II, who committed the "ultimate sin" by defeating YHVH at the end of the game. Should the Demi-fiend choose to reject all the reasons, complete the Labyrinth of Amala and meet Lucifer, he will unlock the sixth ending - the 'True Demon Ending'. After defeating Kagutsuchi, Lucifer remarks that by defying the Great Will and choosing to side with him, the Great Will shall curse the Demi-fiend for eternity, implying that he will suffer the same fate, or worse, as Hijiri. However, Lucifer will also comfort the Demi-fiend, stating that even if the Great Will cursed him, he'd have the blessing of the fallen angel. The Demi-Fiend then leads the legions of Chaos in the final battle against the Great Will.

Devil Summoner: Raidou Kuzunoha vs. King Abaddon
The Infinite Abyss is a system set up by God to either punish or restore faith of him in the world through fear of him. Since humans despaired of the world and despairing over the world is the same as losing faith in God a portal will open up to the Infinite Abyss. The Apollyon horde acting as his agents to bring humans back to his side. Shinado's Anger aspect uses this system set up by God as a means to bring what he considers salvation to mankind. Camael also mentions the Lord watching the events from afar.

Devil Survivor
While not actually appearing, it is heavily implied that "Yehowah" is responsible for the Tokyo lockdown, as Metatron was commanded to start it. Just before the fight with Belial, Loki explains the history of the King of Bel, saying that in 2500 bc, Bel ruled the world, until Yehowah defeated him in 600 BC. Yehowah is presented more amiably in this than in other Megami Tensei titles, as the angel Remiel is sent to aid the player and genuinely desires to help the player save humanity. In one of the game's endings, the player can side with Yehowah and become the new Messiah, bringing the world towards peace. Another route allows the player to become the King of Bel and challenge Yehowah for rulership of creation. In Devil Survivor: Overclocked, both of these routes are extended into 8th Days. Yehowah can also choose to abandon humanity if the player takes Yuzu's route and plays through her 8th Day scenario, where humanity fails its ordeal and then rejects Yehowah, causing the deity to abandon mankind in return.

Devil Survivor: Overclocked also puts a darker light on the motives of Yehowah in the game. As the general conclusion that comes from Amanes 8th Day by the characters is that he intentionally set up the Cain and Abel scenario for three reasons: To have a first murderer(Cain), a first martyr(Abel), and so that Abels hate would allow him to absorb some of Bel when his soul falls into the demon world.

Shin Megami Tensei: Strange Journey
Again, he does not put a direct appearance. However, the angel requesting the deaths of Alilat and Demiurge is very heavily implied to be him, as he once even outright says his true form is "full of light", and adheres to the doctrine of helping humanity, for as long as it mantains its faith in the Holy Spirit, among other notes. He also is mentioned to have "trampled" the "goddess-worshipping world", implying he remains an antagonistic figure and fervently wishing for absolute worship.

Trivia

 * In Shin Megami Tensei, the Machine Defense System boss in the police station has a face that resembles YHVH's to an extent, and it is also law-aligned.