I actually fixed a couple of the parts I had trouble with a few days ago, final version:
Covenant of pure corruption
Sink my teeth deep into you
Saw the move of sheer destruction I'm in through and through
In that hour, I'll devour
Hope is swallowed up in pain
Taste the venom, feel the power coursing through my veins
I'm corruption, I'm destruction through and through
Trust in me, for I will set you free - With a serpent's kiss
Be my light, I won't stray - make me beg, make me pray
Tell me when to laugh or cry, when to live and when to die
Forgotten and betrayed
Rotten and decayed
Left to wither without a voice
Left to slither without a choice
Crucifier, spitting fire
Saying little empty prayers
This empire growing higher
To the spider's web
Sharp tongue severs like a razor
Swimming in a sea of rage
Vindicators, masqueraders, all the world's my stage
I devour, I empower, God of pain
Trust in me, for I will set you free - With a serpent's kiss
How could it come to this?
With a serpent's kiss