Being about to prove that the will, the calling, and the commandment of the Trinity is one, St. Ambrose shows that the Spirit called the Church exactly as the Father and the Son did, and proves this by the selection of SS. Paul and Barnabas, and especially by the mission of St. Peter to Cornelius. And by the way he points out how in the Apostle’s vision the calling of the Gentiles was shadowed forth, who having been before like wild beasts, now by the operation of the Spirit lay aside that wildness. Then having quoted other passages in support of this view, he shows that in the case of Jeremiah cast into a pit by Jews, and rescued by Abdemelech, is a type of the slighting of the Holy Spirit by the Jews, and of His being honoured by the Gentiles.