Fausset's Bible Dictionary
The Chaldee name ("servant of Nego." i.e. Nebo or Mercury, the interpreter of the gods) for Azariah, one of Daniel's three companions, miraculously delivered from the furnace into which they were cast for not worshipping Nebuchadnezzar's golden image (Daniel 3). A tyrant may change the name, but he cannot change the nature, of him whose God is Jehovah. "The Son of God" with the three rendered the fire powerless to hurt even a hair of their heads (Isaiah 43:2; Matthew 10:30). The salvation He worked is herein typified: the Son of God walking in the furnace of God's wrath kindled by our sins; connected with the church, yet bringing us faith without so much as "the smell of fire" passing on us.
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Fausset, Andrew R. Entry for 'Abednego'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/a/abednego.html. 1949.