If you have less than 3 holy items the statue should tell you that you need all 3 when you step in the circle on the right. Try dropping a holy item and stepping in the circle again, to see if you are in the right one. When you have the 3 items, the statue should just ask you which you want to keep (save before identifying if you want to reload a few times to make sure you get good stats).
If you had previously been in this place and touched any of the tombs (thereby awakening a guardian) then the statue will not speak to you when you have all 3 items in your inventory.
However, there is a
FIX for broken Holy Items quest.
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