This Sunday's readings compel us to meditate on the meaning of faith. Paul Tillich, the 20th century theologian, said, "Faith is the most misunderstood word in the religious vocabulary". Faith is an attitude of trust in the presence of God, which is simple enough to say, yet to live by faith means to surrender your entire life over to God, abandoning your own desires and becoming a servant under the realization that everything you have (including your very existence) is a grace, a gift. As we see in the lives of the saints, amazing things happen when we make this transformation; indeed, that which begins with a mustard seed of faith can grow, by the grace of God, to bless the whole world.
Bishop Barron’s Sunday Sermons - Catholic Preaching and Homilies