A Serpent Puzzle

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In each chapter mentioned you will find an adjective describing a serpent, starting with the letter given, and having as many letters as there are dashes. Print the missing letters on the dashes. Who is the serpent? (Rev. 12:99And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him. (Revelation 12:9)).
S _ _ _ _ _ _ (Genesis 3)
F _ _ _ _ (Numbers 21)
B _ _ _ _ _ (2 Kings 18)
C _ _ _ _ _ _ (Job 26)
W _ _ _ (Matthew 10)
ML-12/03/2000