St. Vincent of Lerins, Confessor

Died c. 445

Feast day May 24

The brother of St Lupus of Troyes, Vincent was a soldier. He chose to resign from the military, and became a monk and priest on the island of Lerins, off the southern coast of France.  He is best known for the treatise Commonitorium, which he wrote about 434, under the pen name Peregrinus.  In it, he argued that faith is that which is held always, everywhere and by all.  All new points of doctrine must therefore be examined, and compared to that faith, in order to determine their validity.