Matthew 15:29-38; Mark 7:31-37.
In this lesson, we learn the Lord's traveling schedule demonstrated that though He came to reveal and present Himself first to Israel, He also came as the Saviour of the world. His ministry among Gentile people (i.e. Tyre, Sidon, the ten cities of Decapolis) was a "sneak preview" of the extension of His Kingdom to the entire world.
Jesus performed many miracles while in the area of Decapolis (the Gadarene demoniac had spread word in Decapolis about the great thing he did for him), but two specific miracles are recorded and discussed in this lesson. They are the healing of a deaf man (Mark 7:35) and the feeling of the 4,000+ (8:7-9).