Well.....since you ask....
I would first suggest that you visit a few similar places, and see what they've done. I'd also ask the parson what he desires.
I'd go to a service or two, just to see how that particular church operates, and what they might expect. There are some basic issues here...is the preacher the star of the show- or does he stand to the side, as a supporting figure?
You definitely do not want to light the prescher from below...unless yeo want to make him look satanic! :-)
Lighting from above can also be a problem as you don't want the congregation to be looking into a bright light.
I see a projector screen in the area. One thought is to make a box, and mount a fluorescent strip light in such a way that the bulb is completely concealed from the view of the congregation, with the light aimed up and back. Light will then reflect off the ceiling, and softly light the stage. The same thing can be done on either side of the stage, where the walls meet the ceiling.
This, then, leaves us with indirect lighting, with perhaps a few carefully placed spot lights to accent the artwork.
For example, you might replace the spot light on the cross with rope lighting concealed behind it, to make the outline glow. Ditto for any steps parishoners might be asked to ascend.
Were one to be inspired by Hollywood -where a shaft of light falls upon the anointed- you might forgo lighting all together, and have a "solar tube" skylight installed over the alter.
Related topics are holiday lighting and lighting control. Make sure you have enogh switches, and their placed in the right places. Consider whether dimming is desired.
Let there be light!