"Jesus answered, “Everyone who drinks this water will be thirsty again, 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.” John 4:13-14
We can go without food for a reasonable amount of time, but we cannot go without water. Clean water is essential to our lives each day. It affects our physical health and it must be clean water to stay healthy.
Drinking of Jesus' holy and eternal water of salvation requires that we only drink of Him and He will never allow us to thirst. He wants us to be willing to say "yes, Lord" and drink of Him only, and forsake our old, "dirty" drinking water. This means forsaking old ideas, mindsets, habits, materialism, idolizing ourselves and what He speaks to each individual heart. Drinking of His living water begins to purify us and He makes our new ways life giving and pure.