They had not been in Troy long when they met a doctor named Luke. We do not know whether one of them was ill and the doctor helped him; we do not know whether Doctor Luke (who was a Greek) worshipped, when he met them, Æsculapius, the god of healing of the Greek people. The doctor did not live in Troy, but was himself a visitor.

"I live across the sea," Luke told his three friends—Paul, Silas and Timothy—stretching his hand out towards the north. "I live," he would say proudly, "in the greatest city of all Macedonia—Philippi. It is called after the great ruler Philip of Macedonia."

Then Paul in his turn would be sure to tell Doctor Luke what it was that had brought him across a thousand miles of plain and mountain pass, hill and valley, to Troy. This is how he would tell the story in such words as he used again and again:

"I used to think," he said, "that I ought to do many things to oppose the name of Jesus of Nazareth. I had many of His disciples put into prison and even voted for their being put to death. I became so exceedingly mad against them that I even pursued them to foreign cities.

"Then as I was journeying[6] to Damascus, with the authority of the chief priests themselves, at mid-day I saw on the way a light from the sky, brighter than the blaze of the sun, shining round about me and my companions. And, as we were all fallen on to the road, I heard a voice saying to me:

"'Saul, Saul, why do you persecute me? It is hard for you to kick against the goad.'

"And I said, 'Who are you, Lord?'

"The answer came: 'I am Jesus, whom you persecute.'"

Then Paul went on:

"I was not disobedient to the heavenly vision; but I told those in Damascus and in Jerusalem and in all Judæa, aye! and the foreign nations also, that they should repent and turn to God.