It is the Decision of the Holy Spirit and Us….On the Council of Jerusalem and the Catholicity of the Early Church | Archdiocese of Washington

This is a great read on the authority of the Pope and the Church, as seen in Acts, from the earliest years:

http://blog.adw.org/2011/05/it-is-the-decision-of-the-holy-spirit-and-us-on-the-council-of-jerusalem-and-the-catholicity-of-the-early-church-2/