John 8:25

Who art thou? Jesus said to them: The beginning,[3] who also speak to you. This text and the construction of it is obscure, both in the Latin and in the Greek. St. Augustine and some of the Latin Fathers, expound it in this manner: I am the beginning of all things, who now being made man, speak to you. But this does not seem the construction, if we consult the Greek text; (where the beginning is not in the nominative, but in the accusative case) and therefore St. Augustine having considered more attentively the Greek, thinks that something must be understood, as believe me to be the beginning: he looks upon this to be the sense and the construction, as being connected with what was said two verses before; to wit, if you believe not that I am he, the true Messias, you shall die in your sins. “That they might,” says St. Augustine (tract. 38, num. 11, p. 560) “know what they were to believe,” he made them this answer, as if he had said: believe me to be the beginning, the cause, the author of all things, who am now become man, and speak to you. Other later interpreters are of opinion that the beginning is here a Grecism, and signifies that same as at first, or from the beginning. The sense therefore and construction may be, I am, what I said and told you at first, and from the beginning; that is, I am your Messias, the true Son of God, sent into the world, &c. (Witham) — The Pharisees, indignant at the liberty with which Jesus spoke to them, demand of him in a rage, Who art thou, to speak to us in this imperious manner, to say that we shall die in our sins? Jesus answered them, that he was the Beginning, Author, Creator, and Ruler of all things. This is the more orthodox and more becoming interpretation. Or, I am, in the first place, what I have already told you; viz. (ver. 12.) I am the light of the world; he that followeth me, walketh not in darkness, but shall have the light of life. Or, it may mean, I am what I have always from the beginning told you. I am the Son of God, the Messias, &c. (Calmet)

1. The question which the Jews put to him (v. 25): Who art thou? This they asked tauntingly, and not with any desire to be instructed. He had said, You must believe that I am he. By his not saying expressly who he was, he plainly intimated that in his person he was such a one as could not be described by any, and in his office such a one as was expected by all that looked for redemption in Israel; yet this awful manner of speaking, which had so much significancy in it, they turned to his reproach, as if he knew not what to say of himself: "Who art thou, that we must with an implicit faith believe in thee, that thou art some mighty HE, we know not who or what, nor are worthy to know?"

Verses 21-29 Those that live in unbelief, are for ever undone, if they die in unbelief. The Jews belonged to this present evil world, but Jesus was of a heavenly and Divine nature, so that his doctrine, kingdom, and blessings, would not suit their taste. But the curse of the law is done away to all that submit to the grace of the gospel. Nothing but the doctrine of Christ's grace will be an argument powerful enough, and none but the Spirit of Christ's grace will be an agent powerful enough, to turn us from sin to God; and that Spirit is given, and that doctrine is given, to work upon those only who believe in Christ. Some say, Who is this Jesus? They allow him to have been a Prophet, an excellent Teacher, and even more than a creature; but cannot acknowledge him as over all, God blessed for evermore. Will not this suffice? Jesus here answers the question. Is this to honour him as the Father? Does this admit his being the Light of the world, and the Life of men, one with the Father? All shall know by their conversion, or in their condemnation, that he always spake and did what pleased the Father, even when he claimed the highest honours to himself.