Hint

The name of this song is also a Celtic Frost album title.

Answer

To Mega Therion - Therion

Powers of Thagirion
Watch the great beast to be
For to Mega Therion
The draconian melody
The dragon open the eye
And reveal both truth and lie
Spiritual supremacy

Ride the beast of ecstasy
Spiritual supremacy
Ride the beast of ecstasy
Ialbaophs creative spark
Manifests the utmost dark
Ialbaophs creative spark

Meaning the letter of Theth
Hide the force of Baphomet
Meaning the letter of Theth

The wound of Baal will be healed
When sign of time is unsealed
The wound of Baal will be healed

The world will burn by Sorath’s flame
And through the solar sign proclaim