1 For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
2 If ye have heard of the dispensation of the grace of God which is given me to you-ward:
Paul, the Apostle to the Gentiles (that is US), is reaching out to those who he does not know if they know of him or WHO he is, but he tells them of his ministry and of His calling of GOD and His WORK to spread the Gospel to the Gentiles. Here in Ephesus, he is writing to the Church...
God has sent HIM to them....