The Church of the Lord is built upon the rock of the apostles among so many dangers in the world; it therefore remains unmoved. The Church’s foundation is unshakeable and firm against the assaults of the raging sea. Waves lash at the Church but do not shatter it. Although the elements of this world constantly beat upon the Church with crashing sounds, the Church possesses the safest harbour of salvation for all in distress. Although the Church is tossed about on the sea, it rides easily on rivers, especially those rivers that Scripture speaks of: The rivers have lifted up their voice.These are the rivers flowing from the heart of the man who is given drink by Christ and who receives from the Spirit of God. When these rivers overflow with the grace of the Spirit, they lift up their voice.
There is also a stream which flows down on God’s saints like a torrent. There is also a rushing river giving joy to the heart that is at peace and makes for peace. Whoever has received from the fullness of this river, like John the Evangelist, like Peter and Paul, lifts up his voice. Just as the apostles lifted up their voices and preached the Gospel throughout the world, so those who drink these waters begin to preach the good news of the Lord Jesus.
Drink, then, from Christ, so that your voice may also be heard. Store up in your mind the water that is Christ, the water that praises the Lord. Store up water from many sources, the water that rains down from the clouds of prophecy.
Whoever gathers water from the mountains and leads it to himself or draws it from springs, is himself a source of dew like the clouds. Fill your soul, then, with this water, so that your land may not be dry, but watered by your own springs.
This is a word from St. Ambrose. Today is his feast day, and one of the wonderful things he did was lead St. Augustine to Christ.