The partridge in a pear tree was Jesus Christ.
Two turtle Doves were the Old Testament and New Testaments.
Three French Hens stood for Faith, Hope & Love.
The four calling birds were the four gospels of Matthew, Mark, Luke & John.
The five golden rings recalled the Torah or Law, (Pentateuch) the first five books of the Old Testament.
The six geese a-laying stood for the six days of creation.
Seven swans-a-swimming represented the sevenfold gifts of the Holy Spirit (Prophesy, Serving, Teaching, Exhortation, Contribution, Leadership, and Mercy)
The eight maids-a-milking were the eight beatitudes.
Nine ladies dancing were the nine fruits of the Holy Spirit- i.e. (Love, Joy, Peace, Patience, Kindness, Goodness, Faithfulness, Gentleness, and Self Control)
The ten lords-a-leaping were the ten commandments
The eleven pipers piping stood for the eleven faithful disciples.
The twelve drummers drumming symbolized the twelve points of belief in the Apostles’ Creed.