In this World War Two memorial, five angels hover above David. King David is playing a harp, and below him are the words, "O Come Let Us Sing Unto the Lord." [And pass the ammunition.]
"Praise the Lord and Pass the Ammunition" is an American patriotic song written by Frank Loesser and published as sheet music in 1942 by Famous Music Corp. The song was a response to the attack on Pearl Harbor that marked United States involvement in World War II.
The song describes a chaplain ("sky pilot") being with some fighting men who are under attack from an enemy. He is asked to say a prayer for the men who were engaged in firing at the oncoming planes. The chaplain puts down his Bible, mans one of the ship's gun turrets and begins firing back, saying, "Praise the Lord and pass the ammunition".