Jamieson, Fausset & Brown, on John 6:54

“He that eateth my flesh, and drinketh my blood, hath everlasting life: and I will raise him up in the last day.”

“Whoso eateth . . . hath, &c.--The former verse said that unless they partook of Him they had no life; this adds, that whoever does so "hath eternal life." and I will raise him up at the last day--For the fourth time this is repeated (see Joh 6:39-40, Joh 6:44) --showing most clearly that the "eternal life" which such a man "hath" cannot be the same with the future resurrection life from which it is carefully distinguished each time, but a life communicated here below immediately on believing (Joh 3:36; Joh 5:24-25); and giving to the resurrection of the body as that which consummates the redemption of the entire man, a prominence which in the current theology, it is to be feared, it has seldom had. (See Rom 8:23; 1Co. 15:1-58, throughout).”

Imported from an open dataset — not yet checked against the printed edition.