A review of how the Law of God – The Ten Commandments – directs all people to Christ, manifests His beauty and holiness, and reveals God's will for His people in every place and time. Twenty fundamental theological principles concerning God's Law are expounded, each of the Ten Commandments is explained in its original meaning and contemporary application, and special emphasis is given to the unique challenges faced by 21st century believers, who dwell in a post-Christian and secularized context.