Did you know this? I didn't and found the information interesting as to the development of this song.
The Partridge in a Pear Tree is Jesus Christ.
The Two Turtle Doves are the Old and New Testaments.
The Three French Hens stand for Faith, Hope and Love.
The Four Calling Birds are the Four Gospels of Matthew, Mark, Luke & John.
The Five Golden Rings recalled the Torah (or the Law), the first five books of the Old Testament.
The Six Geese a Laying stand for the Six Days of Creation.
The Seven Swans a-swimming represent the seven fold gifts of the Holy Spirit...Prophesy, Serving, Teaching, Exhortation, Contribution, Leadership and Mercy.
The Eight Maids a-milking are the eight beatitudes.
The Nine Ladies Dancing are the nine fruits of the Holy Spirit...Love, Joy, Peace, Patience, Kindness, Goodness, Faithfulness, Gentleness, and Self Control.
The Ten Lords a-leaping are the ten commandments.
The Eleven Pipers piping stand for the eleven faithful disciples.
The Twelve Drummers drumming symbolizes the twelve points of belief in the Apostles' Creed.