On this day we celebrate the feast of St. Lydia, who is mentioned in verses 14, 15, and 40 of Chapter 16 of the Acts of the Apostles.
Paul and Timothy were in Macedonia's chief city, Philippi: "And upon the sabbath day, we went forth without the gate by a river side, where it seemed that there was prayer; and sitting down, we spoke to the women that were assembled. And a certain woman named Lydia, a seller of purple, of the city of Thyatira, one that worshipped God, did hear: whose heart the Lord opened to attend to those things which were said by Paul. And when she was baptized, and her household, she besought us, saying: If you have judged me to be faithful to the Lord, come into my house, and abide there. And she constrained us."