As the deer longs for running water, so my soul longs for you, my God. Just as the deer longs for running water, so do our newly baptized members, our young deer, so to speak, also yearn for God. By leaving Egypt and the world, they have put Pharaoh and his entire army to death in the waters of baptism. After slaying the devil, their hearts long for the springs of running water in the Church. These springs are the Father, the Son and the Holy Spirit. Jeremiah testifies that the Father is like a fountain when he says: They have forsaken me, the fountain of living water, to dig for themselves cisterns, broken cisterns that can hold no water. In another passage we read about the Son: They have forsaken the fountain of wisdom. And again, John says of the Holy Spirit: Whoever drinks the water I will give him, that water shall become in him a fountain of water, springing up into eternal life. The evangelist explains that the Savior said this of the Holy Spirit. The testimony of these texts establishes beyond doubt the three fountains of the Church constitute the mystery of the Trinity.