Something to think about.
John 4:14, NIV: “but whoever drinks the water I give them will never thirst. Indeed, the water I give them will become in them a spring of water welling up to eternal life.'”
The word I am focusing on is “welling” synonyms: flow, spill, stream, run, rush, gush, roll, cascade, flood, spout.
Jesus is not speaking about real thirst which can be quenched with H2O. He is referring to the thirst of the spirit, the quest of the soul to find meaning in life. He is saying if you accept the words I give you, you will find the answer to the quest of the soul. And once you find it, it will grow into and effervescent flow that will sustain you into eternal life.
As you look at the synonyms of welling, you can see he did not simply mean sustenance he meant an overabundance of supply. So much so that, that the word of life He gives you will cascade out of you. The word of God in you cannot be capped or contained.