Water is related to the refreshing and sustaining of life. In most conditions a person will only survive a few days without water. This same concept is used concerning our spiritual life having its source and refreshment from the Holy Spirit. This does not associate water baptism with salvation or the Holy Spirit, for water immersion is not for the removal of the filth of the flesh, but for a good conscience towards God, 1 Peter 3:21. Even Paul stated he did not come to baptize with water, but to proclaim with authority the gospel of Christ, 1 Corinthians 1:17.
Jesus spoke of living water that will flow from within the heart of a person. Anyone thirsting that comes to Him in belief will have rivers of living water flowing out from his heart, John 7:36-38. Although the Holy Spirit had not yet been given when He stated this, the revitalizing and sustaining of spiritual life by the Spirit is what Jesus was talking about, John 7:39. Just prior to His death and resurrection, Christ reveals to the disciples that a change is coming in the relationship with them and the Holy Spirit. The Spirit was with them, and will soon be in them, for He will indwell the saints of the coming Church, John 14:17. It is through this revelation that we understand the relationship with the concept of rivers of living water and the Holy Spirit concerning spiritual life.
Jesus spoke of this renewing related to the Holy Spirit with Nicodemus. He explained that a person must be born of water even Spirit to enter the kingdom of the God.
Jesus answered, “Truly, truly I say to you, except someone is born out from water even […]