Book excerpt: 25 Advent Readings by Pastor and Author John Piper Come, let us adore him. This beloved Advent refrain captures the heart of the season. Advent is for adoring Jesus. It is a season of preparation to ready our hearts for the glory of Christmas Day as we celebrate the coming of the eternal God in our frail humanity. These twenty-five short devotional readings from John Piper aim to help you keep Christ at the center of the Advent season.