Not sure if it's a bug but Soldier's Prayer doesn't appear to affect halo. If it's not a bug, then please disregard and feel free to delete my post.

Fractals of pale light materialize in a cascading pattern around XXX, outlining the faint beginnings of a complex gyre. With a bestial moan, shafts of brilliant white light erupt from the ether, illuminating the pattern as if it were lifeblood sustaining the vein. The wall of light echoes outward rapidly, leaving a misty white halo to shroud XXX in its wake.

The ring of light smashes into you, forcefully pushing you from melee to missile range, away from XXX.

XXX gestures at you.
A portion of the spell's energy is absorbed harmlessly by your holy aura.
The power of the Soldier's Prayer slips away from you, fused elements of its pattern falling away like brittle metal.
Spectral red-gold flames shroud several globes of ethereal silver-grey light as they surge outward from XXX hand in rapid succession, hurtling toward you.
An ephemeral light glows about you blunting the blow.
The globe glances off of your pavise shield.
You scream in agony as the globe brutally slams into your abdomen, shattering your body and spraying blood and splintered bone in a wide circle.
An ephemeral light glows about you blunting the blow.
The globe glances off of your pavise shield.
You clutch at your throat as the radiant globe of light lands a glancing blow.
An ephemeral light glows about you blunting the blow.
The globe glances off of your pavise shield.
You flinch reflexively as the luminescent globe bounces off of your left eye, doing little damage.
An ephemeral light glows about you blunting the blow.
The globe glances off of your pavise shield.
With disturbing force, the globe smashes into your back and bursts the torso open in an explosion of blood, bone and viscera.
An ephemeral light glows about you blunting the blow.
The globe glances off of your pavise shield.
You clutch at your throat as the radiant globe of light lands a glancing blow.