You are hereUCG.org / Sermons / The Great Mystery The Great Mystery Given on Sep 13, 2014 by Bart Bornhorst Listen Downloads MP3 Audio (12.78 MB) Downloads The Great Mystery MP3 Audio (12.78 MB) × Pastor Bart Bornhorst gives an overview and meaning of the fall “Feasts of the Lord,” which has remained a great mystery to the world but has been revealed to God’s elect. You might also be interested in....