My problem with this is that Pauls community wrote rhetorically to build up to persuade its specific readers, to go out of there way to make specific points in their context and meaning. And none of them mean this in conclusion.Peter Kirby wrote: The candidate that comes to my mind is ‘under the earth': that Jesus descended under the earth and was crucified and buried by the demons there. Perhaps the reader has their own ideas or comments on the subject.
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To me its taking verses like this one way out of context. In context to me it simply states the typical Jewish place of the dead where people who lived go when they die a mortal death.
https://www.biblegateway.com/verse/en/Romans%2010%3A7
“And do not say, ‘Who will go down into the ·world below [or depths; or place of the dead; L abyss; Deut. 30:13; Ps. 107:26]?’” (That means, “Who will go down and bring Christ up from the dead?”) [C Such impossible tasks are not needed for our salvation, since Christ already did them for us.]
NIRV
“And do not say, ‘Who will go down into the grave?’ ” (Deuteronomy 30:13) That means to bring Christ up from the dead.
1 Corinthians 15:47
the second man is the Lord from heaven; as Adam was the first man, Christ is the second man; and these two are spoken of, as it they were the only two men in the world; because as the former was the head and representative of all his natural posterity, so the latter is the head and representative of all his spiritual offspring: and he is "the Lord from heaven"; in distinction from the first man, who was of the earth, and whose lordship reached only to the earth; whereas Christ is Lord of all, not only Lord of lords below, but Lord of angels and saints above; the whole family in heaven and in earth is named of him; and he has all power in heaven and in earth, and a name above every name in this world, and that to come, and is indeed higher than the heavens: this is not to be understood of his human nature, or of his human body, as if that came down from heaven
I don't know Peter I need more