You are hereUCG.org / Sermons / How Do We Know to Keep God's Holy Days? How Do We Know to Keep God's Holy Days? Given on Sep 1, 2007 by Roy Holladay Listen Downloads MP3 Audio (15.62 MB) Downloads How Do We Know to Keep God's Holy Days? MP3 Audio (15.62 MB) × When we let the Bible be our guide, we can keep the Holy Days in complete confidence, in the manner and way He has ordained.