Verily, verily, I say unto you, He that believeth [on £ me] hath eternal life. He has here given a new turn to the conversation, and repeated what had been the substance of several discourses (John 3:16, John 3:18, John 3:36; John 5:24), and formed, indeed, the starting place of this (John 6:27, John 6:35, John 6:36).
The full acceptance of Christ provides "living water" for the thirsty, "living bread," "bread from heaven," for the hungry—an inward refreshment, a Divine nourishment, an inexhaustible supply. "He that believeth on me" (whether the εἰς ἐμὲ were in the original text or not, they are involved in the sense)has entered on the possession of an eternal blessedness of being, superior to death, transcending time and sense—he "hath eternal life."