New Defender's Study Bible Notes
63:9 lower parts of the earth. This striking phrase is used also in Psalm 139:15, Isaiah 44:23, Ezekiel 31:14, 16, 18, and 32:18, 24. In the Ezekiel passages it is rendered “nether parts of the earth,” in Psalm 139:15 “lowest parts of the earth,” but the Hebrew is the same. The equivalent phrase in Greek is found in Ephesians 4:9. Depending on context, it can refer either to the great subsurface depths of the earth or (especially in the Ezekiel and Ephesian passages) to the great pit (sheol, hades) in the center of the earth where the spirits of the dead are incarcerated for a time.