In this Advent sermon from 1 Thessalonians 3:9–13, Pastor Mark Groen encourages us to consider what it means to prepare our hearts for Christ’s return. True preparation involves more than seasonal sentiment—it’s about thanksgiving for God's faithfulness, prayer for spiritual growth, and a pursuit of holiness rooted in love. This message challenges us to live a life that is ready for the coming of our King, not by appearance, but by transformation.