The song's lyrics refers to a man who descends into madness, subjecting his family to his anger and rage. At the end of the song, it is hinted his sanity snaps and he murders his loved ones.
The single cover art has a fist exploding through a skull featuring a set of scales. This is probably a reference to the issues addressed across the entire album and in particular the song, and justice for all.
Lyrics
My life suffocates,
Planting the seeds of hate,
I've loved, turned to hate,
Trapped far beyond my fate
I give,
You take,
This life taht I forsake,
Been cheated of my youth,
You turned this lie to truth
Anger, Misery, You'll suffer unto me
Harvester of sorrow,
Language of the mad,
Harvester of sorrow
Pure black looking clear,
Your work is done soon here,
Try getting back to me,
Get back which used to be
Drink up,
Shoot in,
Let the beatings begin
Distributor of pain,
Your loss becomes my gain
Anger, Misery, You'll suffer unto me
Harvester of sorrow,
Language of the mad,
Harvester of sorrow
All have said their prayers,
Invade their nightmares,
To see into my eyes,
You'll find where murder lies,
Infanticide
Harvestor of sorrow,
Language of the mad,
Harvester of sorrow,
Langauge of the mad,
Harvester of sorrow
Check out the lyrics to Eye of the Beholder or maybe the lyrics to Metallica's One.