Eternal life is received by believing in the One whom God sent.

John 6:29, 40, 47

²⁹Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.

⁴⁰And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day.

⁴⁷Verily, verily, I say unto you, He that believeth on me hath everlasting life.