Cold Iron

This one is from a poem by Rudyard Kipling.

It tells the story of a baron who believes iron - for him, representative of brute force - as the metal of man. He tries to revolt against his king by might alone, and is defeated and humiliated.

His king offers him clemency, but the baron refuses, adamant in his belief that might alone makes right.

The king then shows himself to be Jesus Christ, and shows the baron that it is not iron from a blade, but iron "out of Calvary" - that is, the nails from the Cross - that redeems men and gives them actual power.