The Holy Spirit is the source of living water and spiritual cleansing. In John 4:10, Jesus said - "If you knew the gift of God, and who it is who says to you, ‘Give Me a drink,’ you would have asked Him, and He would have given you living water."
In John 4:14, Jesus said - but whoever drinks of the water that I shall give him will never thirst. But the water that I shall give him will become in him a fountain of water springing up into everlasting life.
In John 7:37, Jesus said - .."If anyone thirsts, let him come to Me and drink. 38 He who believes in Me, as the Scripture has said, out of his heart will flow rivers of living water." 39 But this He spoke concerning the Spirit, whom those believing in Him would receive; for the Holy Spirit was not yet given, because Jesus was not yet glorified. John 3:5 - "Born of water and the Spirit." 1 Corinthians 12:13 - .."drink into one Spirit."
"Water" is also used in the Bible as an emblem of the word of God and is associated with cleansing or washing. (John 15:3; Ephesians 5:26) When we are born again, the Holy Spirit begets divine life, so that we are said to become "partakers of the divine nature." (2 Peter 1:4) The new birth is brought to pass through "incorruptible seed, by the word of God, which lives and abides forever" (I Peter 1:23) and the Holy Spirit accomplishes the miracle of regeneration. (Titus 3:5)