>>20910139picrel is one of the earliest instances of "High One" being used as a epithet for Odin. we can also tell this is likely a depiction of Odin, or perhaps a tribal king devoting himself to Odin because of the horses and birds. the inscription reads Houaz lathu aaduaalla alu. roughly translated this means "I pour offerings of ale to the High One", however the meaning of the aaduaalla word is unclear; likely it is a magical chant or some kind of warcry.
>Yes it comes from a Christianthat has never actually been proven. the identity of the compilers of the poetic edda has never been confirmed; it was once attributed to saemundr the learned, a 12th century monk of great legend, but this is unlikely and the attribution comes from the 16th century. although it is highly likely that the compilers were christian monks given that those were some of the only people with access to the tools and knowledge to write this sort of thing, it is also possibly they were funded by private parties, likely royal courts since the subject of norse mythology was still popular for ballads and skaldic poetry even into later christian periods. all of this is irrelevant however because the written style of the poems in the poetic edda is much older than 12th century, when it was compiled. that is something many people dont understand; it was COMPILED in the 12th century, it was not thought up and created in the 12th century. it derives from much older sources, some as old as the 6th century, and others likely having sources going much older.
>"Out of Ymir's flesh was fashioned the earth,>And the mountains were made of his bones;>The sky from the frost cold giant's skull,>And the ocean out of his blood."there are parallels to this line in the Vafþrúðnismál from the rigveda (which is nearly 5000 years old) and avesta, which proves that this is a very ancient concept from the original Aryan religion