Prayer of Adulation to the Emperor
to be recited every morning:
O immortal Emperor: Have mercy on us, miserable unworthies that we are.
O master of the galaxy, protect your flock from the alien.
O keeper of the light, guide our darkened path with your radiance.
We are your warriors and we are servants to thee,
we stand free from blindness of heart,
free from hypocrisy, vainglory and deceits,
but captive to hatred, malice and anger, to the filth, the alien, the heretic.
By thy agony and bloody sweat; by thy Golden Throne and thy death; by thy destruction and re-emergence as the God of men, keep and strengthen us, we who fight for thee.

Libation to the Emperor
to be used whenever thanks are to be given to the Emperor:
The Emperor is our guiding light, a beacon of hope for humanity in a galaxy of darkness.
As we serve Him, He is our greatest servant.
As we pray to Him, His thoughts are only for us.
And in the dark when the shadow's threaten, the Emperor is with us, in spirit and in fact.

Prayer of Safe Return
to be used before entering the warp:
O eternal Emperor, who alone watches us,
and rules the tides and storms,
be compassionate to your servants,
preserve us from the perils of the warp,
that we may be a safeguard to the domain of men.


Prayer for the Lost and Endangered
To be used in times of emergency when traveling the Warp:
Most powerful and glorious Emperor,
who commands the winds and eddies of the galaxy,
we miserable men are adrift in peril,
we cry unto thee for help, save us, or we will perish.
We see how great and terrible thou art,
we fear you and offer our awe,
we fear naught but your wrath ,
and beg a chance to prove ourselves,
so let us not die in the tumultuous of the warp.

Litany of the Lasgun
to be recited before firing your weapon:
Bringer of Death, speak your name,
For you are my life, and the foe's death.


Prayer for Ignition
to be recited before priming an explosive device:
Spirit of fire,
Prime this weapon,
And blast the foe,
From the Emperor's sight.


Prayer of Smiting
to be voiced before firing a projectile weapon and repeated until the missile finds it's target:
Spirits in the Machine,
Reward my faith,
And smash the target.


Litany of Unjamming
to be recited when clearing a jammed weapon:
Spirits of the Machine-God, aid your servant and free his weapon so he may use it to break his foes.


Litany of Cleanliness
to be recited when cleaning your lasgun:
Let my hand wipe the grime from your perfect form,
May you purify with your bolts of light.


Canticle of Appeasement
to be recited to the Machine Spirits when stripping a weapon:
Be still, spirits,
I do what I must,
Forgive the intrusion,
And give me your trust.


Catechism of the Machine
To be used with the utmost gravity, when performing a disruptive procedure on a mechanical device.:
With your strength you protect me,
with my care I repair you,
with sacred oil I appease you,
be quiet good spirits,
and accept my benediction.


Litany of Completion
to be recited when assembling your weapon:
Spirits of the machine, accept my pleas,
And walk amidst the gun, and fire it true.

Litany to Staunch a Wound
to be recited and repeated when seriously hurt.
I pray to slow the blood and close the wound.

Incantation of the Maimed
I lost a limb, but I gained faith.
For I survived!

Oath to Bring Quick Death to a Fallen Comrade
to be recited before the administration of the Emperor's Mercy
Emperor give me the strength to carry out the deed, and brother, grant me forgiveness for what I am about to do.
The end will be swift, and the Eternal gates swing wide for you.
Your duty is done, and I must now do mine.

Credit for the various Litanies and Prayers go to Games Workshop and the Imperial Guardsman's Uplifting Primer.