Inside St. Patrick’s Cathedral in Dublin, Ireland, there’s a door that tells a five-century-old tale. In 1492 two families, the Butlers and the FitzGeralds, started fighting over a high-level position in the region. The fight escalated, and the Butlers, afraid they would be killed, took refuge in the cathedral. When the FitzGeralds came to ask for a truce, the Butlers were afraid to open the door. So the FitzGeralds cut a hole in it, and their leader offered his hand in peace to prove their desire was genuine. The two families then reconciled, and from adversaries they became friends.

God has…