John 6:56

I, as a Christ crucified, not merely considered as to my Divine nature, but as to both natures united in one person, and particularly with respect to my death and suffering, am indeed the food of souls; not a typical food, as manna was, but a true and real food, which nourisheth them to eternal life, and the most excellent food for them. In which sense Christ is called the true light, Joh 1:9, and the true vine, Joh 15:1.

First, We shall be one with Christ, as our bodies are with our food when it is digested (v. 56): He that eats my flesh, and drinks my blood, that lives by faith in Christ crucified (it is spoken of as a continued act), he dwelleth in me, and I in him. By faith we have a close and intimate union with Christ; he is in us, and we in him, ch. 17 21-23; 1 John 3 24. Believers dwell in Christ as their stronghold or city of refuge; Christ dwells in them as the master of the house, to rule it and provide for it. Such is the union between Christ and believers that he shares in their griefs, and they share in his graces and joys; he sups with them upon their bitter herbs, and they with him upon his rich dainties. It is an inseparable union, like that between the body and digested food, Rom 8 35; 1 John 4 13.

4. Christ, having thus spoken of himself as the bread of life, and of faith as the work of God, comes more particularly to show what of himself is this bread, namely, his flesh, and that to believe is to eat of that, v. 51-58, where he still prosecutes the metaphor of food. Observe, here, the preparation of this food: The bread that I will give is my flesh (v. 51), the flesh of the Son of man and his blood, v. 53. His flesh is meat indeed, and his blood is drink indeed, v. 55. Observe, also, the participation of this food: We must eat the flesh of the Son of man and drink his blood (v. 53); and again (v. 54), Whoso eateth my flesh and drinketh my blood; and the same words (v. 56, 57), he that eateth me. This is certainly a parable or figurative discourse, wherein the actings of the soul upon things spiritual and divine are represented by bodily actions about things sensible, which made the truths of Christ more intelligible to some, and less so to others, Mark 4 11-12. Now,

Verses 52-59 The flesh and blood of the Son of man, denote the Redeemer in the nature of man; Christ and him crucified, and the redemption wrought out by him, with all the precious benefits of redemption; pardon of sin, acceptance with God, the way to the throne of grace, the promises of the covenant, and eternal life. These are called the flesh and blood of Christ, because they are purchased by the breaking his body, and the shedding of his blood. Also, because they are meat and drink to our souls. Eating this flesh and drinking this blood mean believing in Christ. We partake of Christ and his benefits by faith. The soul that rightly knows its state and wants, finds whatever can calm the conscience, and promote true holiness, in the redeemer, God manifest in the flesh. Meditating upon the cross of Christ gives life to our repentance, love, and gratitude. We live by him, as our bodies live by our food. We live by him, as the members by the head, the branches by the root: because he lives we shall live also.