Exodus 19 witnesses the Israelites’ arrival at Sinai, having graciously been rescued by God from Egypt. Before giving them a code to live by, the Law given in chapter 20, God reveals his holiness to them by a series of instructions given through Moses. This sermon notes the indicators of God’s holiness all through the chapter. It considers God’s call to the people to respond to their rescue and salvation by personal and corporate obedience. Furthermore it considers the specific call of a holy God to his “treasured possession” that they will consecrate themselves and display holiness in their own lives, never forgetting God’s holiness. Parallels are noted throughout with the situation of the believer in Christ today who has likewise been rescued from slavery by a gracious and holy God, and who is called to respond in obedience and holy living.