My people have committed two evils; they have forsaken Me the fountain of living waters, and hewed them out cisterns . . . that can hold no water.
In this passage, God proclaims Himself the fountain of living waters - that means that He is the source of life and joy and refreshment. In John 4 Jesus showed that He was God when He spoke to the woman at Sychar’s well and offered her that living water. The living water is a source of true satisfaction and peace that comes from within - a well of water springing up into everlasting life. Believers have that true joy that comes from within. A Christian who would go to the world for satisfaction is like a wanderer in the desert who has left the oasis in search of a few drops of moisture that can be extracted from a cactus.