Where does evil come from

“You were the anointed cherub who covers;
I established you;
You were on the holy mountain of God;
You walked back and forth in the midst of fiery stones.
You were perfect in your ways from the day you were created,
Till iniquity was found in you.
“By the abundance of your trading
You became filled with violence within,
And you sinned;
Therefore I cast you as a profane thing
Out of the mountain of God;
And I destroyed you, O covering cherub,
From the midst of the fiery stones.
“Your heart was lifted up because of your beauty;
You corrupted your wisdom for the sake of your splendour;
I cast you to the ground,
I laid you before kings,
That they might gaze at you.
Ezekiel 28.14-17