The night of the worst sin of all sins

The night was a dark curtain
The moon was a full bright disk
The stars were as bright as ever
The time was a deadly risk

The trees where swaying, gently
From the light whistling wind
The air was cool, and stale
The night of the worst sin of all sins

For of this original night
Two opposites meet
The sides of Good and Evil,
You're in for a nasty treat

Nobody seems to notice
An angel gliding about
This is the only time
All must go right now

She takes out a dagger
And fiercely shoves it in the heart
Of a torturous monster
and it begins to fall apart

Now the world is ending
People are dropping like flies
How could something so wrong
Feel so very right?

Now this is the end
The good may rest in peace
The decision is made
This angel killed our soul's beast

~~There are two hidden meanings I found in this poem: 1 I had in my head as I was writing it, and another I discovered after reading it. I'll let you find them for yourself.