Moses tells God's people to neither add to nor subtract from God's commands. Nothing could be simpler, right? Actually, this was a problem for Israel and continues to be a problem for God's people today. Many Christians set aside (subtract) difficult or unpopular Biblical commands. However, other well-meaning Christians add requirements (extrabiblical rules) to what we find in the Scriptures. In this message, we consider how both deviations lead to serious problems in the church.