(1) Spring water as contrasted with well-water, promised by Our Lord to the Samaritan woman at the well of Jacob (John 4; Isaiah 12; Jeremias 2; Ezechias 47; Zacheriah 14).
(2) The life of Grace on earth leading to life everlasting in heaven, "...but he that shall drink of the water that I will give him, shall not thirst forever" (John 4).