1 John 5:10–12 (YLT)

10 He who is believing in the Son of God, hath the testimony in himself; he who is not believing God, a liar hath made Him, because he hath not believed in the testimony that God hath testified concerning His Son; 11and this is the testimony, that life age-during did God give to us, and this—the life—is in His Son; 12he who is having the Son, hath the life; he who is not having the Son of God—the life he hath not.