One day Jesus asked the question, “Do people gather figs from thistles?” The answer is of course no — you harvest what you plant. Plant thistles and thistles take root and thistles they become. If you want to grow figs, you need to start with fig seeds. With this question, Jesus implicitly ridicules the idea that good can be brought about by evil means. Violence is not the means of creating a peaceful society. Vengeance does not pave the road to forgiveness. Spousal abuse does not lay the foundation for a lasting marriage. Rage is not a tool of reconciliation.
Yet, while figs do not grow from thistles, in the world of human choice and action, a positive change of attitude and direction is always a possibility. Sinners are the raw material of saints. The New Testament is crowded with accounts of transformations.In the Church of the Savior in the Chora district of Istanbul, there is a fourteenth-century Byzantine mosaic that, in a single image, tells a story of an unlikely transformation: the conversion of water into wine for guests at a wedding feast in the village of Cana. In the background Jesus — his right hand extended in a gesture of blessing — stands side by side with his mother. In the foreground we see a servant pouring water from a smaller jug into a larger one. The water leaves the first jug a pale blue and tile-by-tile becomes a deep purple as it reaches the lip of the lower jug. “This, the first of his signs, Jesus did at Cana, in Galilee, and manifested his glory; and his disciples believed in him.”
This “first sign” that Jesus gave is a key to understanding everything in the Gospel. Jesus is constantly bringing about transformations: blind eyes to seeing eyes, withered limbs to working limbs, sickness into wellbeing, guilt into forgiveness, strangers into neighbors, enemies into friends, slaves into free people, armed men into disarmed men, crucifixion into resurrection, sorrow into joy, bread and wine into himself. Nature cannot produce figs from thistles, but God is doing this in our lives all the time. God’s constant business in creation is making something out of nothing. As a Portuguese proverb declares, “God writes straight with crooked lines.”