Today is the Feast of St. Luke, Evangelist. According to Colossians 4:14, Luke was a physician. He joined Paul during his second missionary journey (Acts 16:9-11) and accompanied him during several portions of his travels. He traveled with Paul to Jerusalem and was with him during the two years that he was imprisoned in Caesarea (Acts 21-26). It is likely that Luke used this time to gather material he used in writing the Gospel of Luke. Luke wrote the Book of Acts as the second volume that accompanies the Gospel of Luke (Acts 1:1-2). More than one-third of the New Testament was written by Luke.
After this the Lord appointed seventy-two others and sent them on ahead of him, two by two, into every town and place where he himself was about to go. And he said to them, “The harvest is plentiful, but the laborers are few. Therefore pray earnestly to the Lord of the harvest to send out laborers into his harvest. Go your way; behold, I am sending you out as lambs in the midst of wolves. Carry no moneybag, no knapsack, no sandals, and greet no one on the road. Whatever house you enter, first say, ‘Peace be to this house!’ And if a son of peace is there, your peace will rest upon him. But if not, it will return to you. And remain in the same house, eating and drinking what they provide, for the laborer deserves his wages. Do not go from house to house. Whenever you enter a town and they receive you, eat what is set before you. Heal the sick in it and say to them, ‘The kingdom of God has come near to you.’ (Luke 10:1-9 ESV)
Almighty God, our Father, Your blessed Son called Luke the physician to be an evangelist and physician of the soul. Grant that the healing medicine of the Gospel and the Sacraments may put to flight the diseases of our souls that with willing hearts we may ever love and serve You; through Jesus Christ, Your Son, our Lord, who lives and reigns with You and the Holy Spirit, one God, now and forever.