The song was originally done by Tex Ritter in 1948. The most popular version was recorded by Wink Martindale.
"The Cards" is set during World War II, where a group of Army soldiers, on a long hike during a campaign in southern Italy, had arrived and camped near a town named Cassino. While Scripture is being read, one boy who has only a deck of playing cards, pulls them out and spreads them in front of him. He is immediately spotted by a sergeant, who orders the soldier to put them away (thinking he's playing cards in church). The soldier is then arrested and taken before the Provost Marshal to be punished.
The Provost Marshal demands an explanation, to which the soldier explains the significance of each card
Ace: The one true God
Deuce: The Old Testament and New Testament in the Bible
Trey/Three: The Holy Trinity; the Father, the Son, and the Holy Spirit/Ghost
Four: St. Matthew, St. Mark, St. Luke, and St. John, evangelists and authors of the four Gospels
Five: The two groups of five virgins who trimmed their lamps for a wedding. Five were wise (by saving enough oil) and were admitted, while the other five were foolish (did not have enough oil) and were shut out.
Six: God creates the Earth in six days.
Seven: God rests on the seventh day, now known as the Sabbath.
Eight: The eight righteous people whom God saved during the Great Flood: Noah, his wife, their three sons, and their wives.
Nine: Of the ten lepers whom Jesus cleansed, nine of them didn't even thank him.
Ten: The Ten Commandments God handed down to Moses.
King: Jesus Christ, King of Kings and Lord of Lords, or alternatively, God the Father.
Queen: Blessed Virgin Mary, the Mother of Jesus and Queen of Heaven.
Jack or Knaves: Satan or the Devil
365 Spots: Days in a year
**NOTE - basic deck actually contains 364, + 1 for a Joker, (even though most decks of cards will contain 2 jokers)
52 Cards: Number of weeks in a year
Thirteen Tricks: Number of weeks in a quarter
Four Suits: Approximate number of weeks in a month (can also mean the four seasons but this is not included in the song)
Twelve Face Cards: Number of months in a year