You are hereUCG.org / Sermons / Acts 15: God's Calling and a Conference on... Acts 15 God's Calling and a Conference on Spiritual Circumcision Given on Dec 14, 2013 by Philip Aust Listen Downloads MP3 Audio (15.48 MB) Downloads Acts 15: God's Calling and a Conference on Spiritual Circumcision MP3 Audio (15.48 MB) × In a continuing series on the book of Acts, Philip Aust covers pivotal chapter 15. Among the important events recorded there is the apostles discussion on the issue of physical circumcision for the Gentile Christians.