The lowest parts of the Earth is one of the many ways in which the Bible refers to the core of the Earth.
The Lowest Parts of the Earth
The Four Corners of the Earth
The phrase "the four corners of the earth" occurs a few times in scripture but every time it's in the context of the millennial kingdom, it's never used in any other context.
Tradition
Obviously the earth isn't flat, therefore, the Spirit of Truth can't lead you to that conclusion. It's very simple, God isn't going to expect you to believe something that's obviously wrong.
Gravity as a Process
Mass sinks in time, into stratified layers of sediment: a solid core on fire in the darkness, sunk in the shadow of death. (Job 28:3) MP Technical Paraphrase
Foundation: ฮบฮฑฯฮฑฮฒฮฟฮปแฟฯ – katabolรฉ
The "foundation-plan" typically relates to Christ's incarnation, i.e. coming to earth in the flesh to be our Redeemer. This divine plan was set and sealed (guaranteed) before creation.
People and Stones
It would appear that there is a clear statement that human souls and debris are being added to hell in the Qur'an. The fire is hell. It's fuel is human souls and debris. Not just any souls, the souls of disbelievers.
Consume the Earth with Her Increase
For a fire is kindled in mine anger, and shall burn unto the lowest hell, and shall consume the earth with her increase, and set on fire the foundations of the mountains. (Deuteronomy 32:22) KJV
The Millennial Kingdom
The changes that take place on earth during the tribulation, in the build up to the establishment of the Millennial Kingdom, are discussed in the devotion for November.
The Belly of Hell
Danby House Jonah 2:1-10 Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee. But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: …
To sink, sank: ืึดืึทึผึฃืึฐ – makak
One Hebrew gravity concept occurs in the context of a house so neglected that the roof falls in. The root that the word foundation is derived from is makon: the establishment of a foundation and sinking down.