Doesn't these verses say that Satan was an angel? [Hebrews 1:7, Ephesians 2:2, 2 Corinthians 11:14, John 13:27, Isaiah 14:12ff, Ezekiel 28:ff, Luke 10:18, Revelation 12:7-8, 1 Timothy 3:6].
Atheist questions the "sons of God" in Genesis 6 relative to the Nephilim and the virgin birth. Could Goliath have been one of the Nephilim? [Genesis 6:4, 2 Corinthians 11:14, 2 Samuel 21:22, John 3:16, John 1:12, 1 John 3:2].
When Satan (the serpent) was cursed in the garden, does it gives us a clue to who he was? [Revelation 12:7-9, Genesis 3:15, Romans 16:20, Ephesians 2:2, 2 Corinthians 11:14].
Did Satan ever do anything good? [Isaiah 14:12, Isaiah 14:16, Ezekiel 28:12-14, Ezekiel 31:3, John 8:44, I John 3:8, Revelation 12:7-9, 2 Corinthians 11:14, Luke 10:18].
Satan was in charge of angels, was a musician in heaven before his fall, how are we supposed to counter that? [Isaiah 14, Ezekiel 28, Revelation 12, 2 Corinthians 11:14]