“Dixerunt ergo ei : Quod ergo tu facis signum ut videamus et credamus tibi ? quid operaris ?”
“They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work?”
“So they asked Him, “What sign then will You perform, so that we may see it and believe You? What will You do?”
“They said therefore to him, “What then do you do for a sign, that we may see, and believe you? What work do you do?”
“They said therefore unto him, What then doest thou for a sign, that we may see, and believe thee? what workest thou?”
Our Lord calleth them to a work they never thought of, the owning and acknowledgment of him to be the true Messiah; the embracing and receiving him as such, and trusting him with all the concerns of their souls; which was necessary, notwithstanding all their acts of obedience to the law, though most certainly productive also of that obedience, and inseparable from it. This our Saviour calleth in answer to what they had said about working the works of God. Yet this will not prove that we are justified by works, because we are justified by faith; for here is no discourse concerning the causation of faith in the justification of a soul, but only concerning what is the will of God, as to all those that shall be saved.
What sign then dost thou shew? And foreseeing that he might, with great propriety, allege the recent miracle, they contrast it with what Moses performed in the desert. It is true, they say, you once fed 5,000 persons with five loaves; but our fathers, to the number of 600,000 did eat, not for once, but during forty years, manna in the desert; a species of food infinitely superior to barley bread. (Bible de Vence) See Numbers i. 46.
1. Their enquiry is after a sign (v. 30): What sign showest thou? Thus far they were right, that, since he required them to give him credit, he should produce his credentials, and make it out by miracle that he was sent of God. Moses having confirmed his mission by signs, it was requisite that Christ, who came to set aside the ceremonial law, should in like manner confirm his: "What dost thou work? What doest thou drive at? What lasting characters of a divine power does thou design to leave upon thy doctrine?" But herein they missed it,
Verses 28-35 Constant exercise of faith in Christ, is the most important and difficult part of the obedience required from us, as sinners seeking salvation. When by his grace we are enabled to live a life of faith in the Son of God, holy tempers follow, and acceptable services may be done. God, even his Father, who gave their fathers that food from heaven to support their natural lives, now gave them the true Bread for the salvation of their souls. Coming to Jesus, and believing on him, signify the same. Christ shows that he is the true Bread; he is to the soul what bread is to the body, nourishes and supports the spiritual life. He is the Bread of God. Bread which the Father gives, which he has made to be the food of our souls. Bread nourishes only by the powers of a living body; but Christ is himself living Bread, and nourishes by his own power. The doctrine of Christ crucified is now as strengthening and comforting to a believer as ever it was. He is the Bread which came down from heaven. It denotes the Divinity of Christ's person and his authority; also, the Divine origin of all the good which flows to us through him. May we with understanding and earnestness say, Lord, evermore give us this Bread.