Paul and Barnabas are found at Antioch, the capital of Pisidia. From Antioch they went to Iconium, the metropolis of Lyconia. Thence to Derbe, another city of Lyconia. In that embassy, they also preached at Lystra, and Perga, and many other cities. Soon after this, Paul said unto Barnabas, "Let us go again, and visit our brethren in every city where we have preached the word of the Lord, and see how they do." Paul expressed an ardent desire to be at Jerusalem on the feast-days:--"For he hasted, if it were possible for him, to be at Jerusalem, the day of Pentecost;" for then thousands of strangers would be there assembled--"Parthians, Medes, and Elamites, and the dwellers of Mesopotamia," and of many other places. In Rome, too, that imperial city, did this apostle continue for two years, preaching the gospel of Christ. There he established a Christian church, to which he addressed the noblest epistle ever written. Of Philip it is recorded, that "passing through, he preached in all the cities, till he came to Cesarea." The apostles and disciples, then directed their attention very particularly to cities. III. _Cities were the theatres of the Holy Spirit's first and most illustrious achievements._ Open the book of the Acts, and mark how and where the Spirit of God accompanied the labours of the apostles. It was at Jerusalem, the city whose million voices had just before demanded the death of their Lord, and imprecated his blood upon their own heads, that the first and greatest effusion of the Holy Spirit took place. _There_ was spiritual wickedness in high places. There iniquity was strongly intrenched. The strong arm of the civil as well as ecclesiastical power was its defence; and human calculation could look for no visits of mercy. Still the Savior's command, to begin at Jerusalem, was obeyed. Nor was it long before that city was filled with the presence of the Most High--before the Spirit came down in power, and thousands were converted to Christ.