On October 18 the Church traditionally celebrates the Evangelist Luke:
Almighty God, who inspired your servant Luke the physician to set forth in the Gospel the love and healing power of your Son: Graciously continue in your Church this love and power to heal, to the praise and glory of your Name; through Jesus Christ our Lord, who lives and reigns with you, in the unity of the Holy Spirit, one God, now and for ever. Amen.??