Not quite the Jordan River, Lake Lanier served as a blustery substitute Sunday to a group of Orthodox Christians celebrating the Feast of Theophany. The day, also known as Epiphany, commemorates the baptism of Jesus in the Jordan and the start of Jesus’ public ministry. According to Scripture, the scene also includes the heavens opening, a dovelike descent of the Holy Spirit and a voice from heaven saying, “This is my beloved Son with whom I am well pleased.”