“You shall love the Lord, your God, with all your heart, with all your soul, and with all your mind. This is the greatest and the first commandment. The second is like it: you shall love your neighbor as yourself. The whole law and the prophets depend on these two commandments.” Matthew 22:37
There are several stories attributed to the symbol of the scalloped seashell and its association with St. James. One is that medieval pilgrims used shells to hold food or water instead of a bowl, another story is that while St. James’ remains were being transferred to Compostela in Spain a knight’s horse fell into a stream and emerged covered in shells.
Additionally, scallop shells were often used to dip into water for baptism. St. James, being a missionary pilgrim to Spain, is therefore associated with the scallop shell which is typically depicted on his clothing, especially a pilgrim hat.