From guardian to enemy
"How you have fallen from the heavens, O Helel, son of the morning! You have been cut down to the ground, you who laid low the nations! "For you have said in your heart, 'Let me go up to the heavens, let me raise my throne above the stars of El, and let me sit in the mount of appointment on the sides of the north; let me go up above the heights of the clouds, let me be like the Most High.'
"Son of man, take up a lamentation for the sovereign of Tsor, and you shall say to him, 'Thus said the Master YHWH, "You were sealing up a pattern, complete in wisdom and perfect in loveliness. "You were in Eden, the garden of Elohim. Every precious stone was your covering: the ruby, topaz, and diamond, beryl, shoham, and jasper, sapphire, turquoise, and emerald and gold. The workmanship of your settings and mountings was prepared for you on the day you were created. "You were the anointed kerub that covered. And I placed you, you were on the set-apart mountain of Elohim. You walked up and down in the midst of stones of fire.
Gustave Doré - Satan in Eden
"You were perfect in your ways from the day you were created, until unrighteousness was found in you. "By the greatness of your trade you became filled with violence within, and you sinned. So I thrust you from the mountain of Elohim, and I destroyed you, O covering kerub, from the midst of the stones of fire. "Your heart was lifted up because of your loveliness, you corrupted your wisdom for the sake of your splendour. I threw you to the earth, I laid you before sovereigns, to look at you. "You profaned your set-apart places by your many crookednesses, by the unrighteousness of your trading. Therefore I brought forth fire from your midst. It has devoured you, and I turned you to ashes upon the earth before the eyes of all who see you. "All who knew you among the peoples were astonished at you. Waste you shall be, and cease to be, forever." ' "
And the devil, taking Him up on a high mountain, showed Him all the reigns of the world in a moment of time. And the devil said to Him, “All this authority I shall give You, and their esteem, for it has been delivered to me, and I give it to whomever I wish.