The Messenger is standing at, standing at the gateThe "Messenger" represents a guy's rod and it's about to penetrate.
Ready to let go, ready for the crush, the Messenger
The girl is a virgin and the messenger will be breaking through.
Too late for whispers, too late for the blush
No more foreplay.
The past is mercy when the future's glow (wont you let it go)
It'll hurt at first, but she'll forget that later once she lets go and enjoy it.
Kneeling journey dressed in the cloak of shadows
Considering the position, you can guess what's going on now. The cloak of shadows is probably pubic hair.
The hunting's grim for the innocent eyes
Innocent eyes will find the person "preying" to be a savage act .
Communion spray (communion's prey?) is a cup of sorrows
But faith is colours for the humbling cries
"Communion spray" should be obvious. If it actually is "communion's prey," one old meaning of prey is "booty," so it's sharing booty, which is an odd euphemism for sex. "Cup of sorrows" refers to how the act can be seen as depreciating (or "humbling", but her allowing the act shows her trust.
The Spirit is over town, waiting for me to hit the floor
Blooming white sky for the voice of one calling tonight
Now she's nearing climax, everything's going white and she's close to passing out.
Tonight's fate is the red crown, the red crown around your door
Red crown around door=a bloody opening. Tonight was the fated night that he would take her virginity.
Time is scattering the seeds of the morning daylight
Morning daylight is bright. So it's bright-colored "seed" being scattered over time.
The avenger is roaming through, roaming through the land
Ready for the clash, for the lasting gash, the avenger
Same allusion as the first two lines.
Mothers kissing sons with a staff in hands
They're actually not mother and son (the girl is a virgin), but the line implies incest. The parent is the one with a staff in his hands, so now we know that the gender is actually reversed.
The bride is shining when the groom is gold (wont you let it go)
Climax again.
Shouting worship choked in a wave of silver
Apparently she's praising him during the act, maybe for encouragement or just to feed his ego. To reciprocate, she's being fed (choked) with the "communion spray," which is the wave of silver.
The offering's grief for Deceiver's pride,
I guess they're saying the guy's feeling guilty about keeping this from the rest of the family.
Salvation man is a cup of fire
But he finds solace in the sinful act.
But hope is the star on a morning tide
But there may be hope yet (read on)
The Pilgrims are gathering and the marching band, the marching band's howling
The two are "pilgrims" in that they're in unusual territory. They gather their family and the family howls in protest.
Compassion is the flag a righteous man, a righteous man will hold
But they feel righteous in their actions and make an appeal for them to show compassion.
The Pilgrims are gathering and the marching band, the marching band's howling
Compassion is the flag a righteous man, a righteous man will hold
The family finally accepts. Massive orgy with loud howling then follows.