Advent comes from the Latin adventus, coming. In many traditions it opens the church year: four Sundays of waiting and preparing before Christmas. It looks two ways at once. It remembers the long wait of God’s people for the promised Savior, “The people that walked in darkness have seen a great light,” and it looks ahead to Christ’s coming again, which the New Testament calls “that blessed hope” (Titus 2:13).
Many churches and families light an Advent wreath, one more candle each Sunday. Many Protestant churches name the four candles hope, peace, joy and love, though the order and the names vary. In the Catholic tradition the third Sunday is Gaudete, rejoice, named for Philippians 4:4, “Rejoice in the Lord alway”, and often marked with a rose-colored candle. Many churches also place a white candle in the center, lit at Christmas, for Christ, the light of the world.
Not every church keeps Advent. Orthodox Christians keep a longer Nativity Fast before Christmas, and some churches do not follow a church calendar at all. But these verses belong to everyone: Isaiah’s promise of a child, John the Baptist’s call to “Prepare ye the way of the Lord,” Mary’s joy, and the Bible’s closing prayer, “Even so, come, Lord Jesus.”