There are many historians researching origin of Christianity, Judaism and Islam, god, known as Yahweh, but there is very little record, in pre Christian mythology.
All religion origin from Africa, before the first human left, when human left Africa, they bring their religion with them and then the myth evolved independently and change. After research we realized the main gods and demons of all religion, to be the same, whether it is Christianity, Hindu, Native Americans etc. These gods are likely to be inspire by real people, that lived before human left Africa. Oldest record of Christian god Yahweh, is around 2500~3000 years ago.
Evidence prove, Yahweh to be same as Hindu god Asura, who is turned evil by his tragic life. After combine all culture's myth, it shows in original story Yahweh's birth mother tried to kill and eat him, when he was a toddler, he was rescued by the god of the rain. Since then Yahweh is an orphan that fend for himself, he become more like a beast, to survive he would even to kill people, everybody hated Yahweh and wanted to kill him. After been driven off the cliff and left for dead, Yahweh was rescued by teen goddess Ishtar. who raised and protected the boy. Teen Ishtar was like the hot cheerleader that slept with the whole football team in teen movies. One day Yahweh accidentally saw Ishtar having sex, thinking Ishtar was been assaulted, Yahweh killed the boy, shocked and angry, Ishtar drove Yahweh away. People started hunting Yahweh again. So, when a drought come the King of the gods Elyon show him mercy, chopping of his arm and turned it into a horse to feed him. Yahweh killed the horse, he brought Ishtar horse meat, but thinking its human flesh, Ishtar angrily drove Yahweh away. Elyon made Yahweh is apprentice and Yahweh become a warrior god. But in Yahweh's eyes the world is still a cruel place, leading him to belief of all those not subject to him, independent from him, contradict him and not of his will is evil and is his enemy, eventually he even think the gods are demonic and rebel against Elyon, but was defeated Yahweh kill anyone human who refuse to worship him as one and only true god, accusing them of been evil. Yahweh proposed to Ishtar, who married Tammauz, but angry at Yahweh's killings, Ishtar sealed him away. Yahweh seen sex as evil, as this is why, he lost his adopted mother, he think all other gods are demonic and the cruelty that faced his life, let him develop a radical view of belief that all that not subject to him, independent from him, contradict him or not from him is evil and must be destroy. Seen sex as evil, not worshiping Yahweh as evil, worshiping other gods as evil and not subject to the way of Yahweh, as evil, has traditionally been the corner stone of Christian value, which leads to the inquisition of the dark ages, those teachings, of Christian value, reflects Yahweh's hate to anything that is not of him, due to his own past.