Drink of the water

"...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.” John 4:14

The water represents the thoughts of God. To drink from it is to drink from the Holy Spirit. It's from then on that we become a fountain of eternal life.

Children of God

"The Spirit of God has made me, and the breath of the Almighty gives me life." Job 33:4

Adam and Eve were creatures of God. Through them, humanity developed without divine intervention. Following through the natural Law of nature fixed by God. With the birth of the Lord Jesus, through the Holy Spirit, a new generation of children of God began.  The Holy Spirit has been at work with everyone who unconditionally gives his life  to God.