Jesus: the living water
In John 4 we find Jesus speaking to a Samaritan woman. After he first asked her for water, in verse 10 he said:
"Jesus answered and said to her, "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.""
And the Lord continues:
"Whoever drinks of this water will thirst again, 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."
Whoever drinks of the water the Lord gives will never be thirsty. There is no other water appropriate to satisfy our thirstiness for life than the water the Lord gives. Who is thirsty for life? Who has been tired by the wilderness of this world? The Lord has good news for him. He, the captain of life, has the living water. If He is put in the midst of one's heart, not only the water He gives will rid him of thirstiness but will also make him "a fountain of water springing up into everlasting life"
"He who comes to me shall never hunger, and he who believes in me shall never thirst" (John 6:35)