In Lent, we imitate Jesus when He fasted forty days and overcame the temptations of Satan (Mt 4:2ff). Some demons cannot be driven out except through prayer and fasting (Mt 17:21). "Prayer and fasting are the first and most effective weapons against the forces of evil" (The Gospel of Life, Pope John Paul II, 100).
In today's Gospel reading, we hear about Jesus "casting out a devil" (Lk 11:14) and showing that He is stronger than the strong man, Satan (Lk 11:22). Just as in the Gospel, Jesus is driving out demons right now, but this is only the beginning. At the end of our forty-day fast, Jesus has planned a worldwide rout of demons when hundreds of millions of Catholics proclaim their faith and reject Satan, all his works, and all his empty promises. This Easter time, God the Father plans to manifest that He has disarmed "the principalities and powers. He made a public show of them and, leading them off captive, triumphed in the person of Christ" (Col 2:15).
Be faithful in your Lenten prayer and fasting. Satan and his demons are shaking and convulsing, as the Church exercises the authority given her by Jesus. The rout is on. Fast in faith.