Donald Barnhouse once wrote, "God gives man brains to smelt iron and make a hammer, hammerhead and nails. God grows a tree and gives man the strength to cut it down and the brains to fashion a hammer handle from the wood. And when man has the hammer and the nails, God will put out His hand and let man drive nails through it and place Him on a cross in the supreme demonstration that men are without excuse." They reject the creator to the degree that when He was incarnate they killed Him.