What is hidden in 3D image?

The crumbling, old church building needed remodeling, so the preacher made an impassioned appeal, looking directly at the richest may in town. At the end of the message, the rich man stood up and announced, "Pastor, I will contribute $1,000."

Just then, plaster fell from the ceiling and struck the rich man on the shoulder. He promptly stood again and shouted, "Pastor, I will increase my donation to $5,000."

Before he could sit back down, plaster fell on him again, and again he virtually screamed, "Pastor, I will double my last pledge."

He sat down, and an larger chunk of plaster fell hitting him on the head. He stood once more and hollered, "Pastor, I will give $20,000!"

This prompted a deacon to shout, "Hit him again, Lord! Hit him again!"