John 4:22

He now explains more largely what he had briefly glanced at about the abolition of the Law; but he divides the substance of his discourse into two parts. In the former, he charges with superstition and error the form of worshipping God which had been used by the Samaritans, but testifies that the true and lawful form was observed by the Jews. And he assigns the cause of the difference, that from the word of God the Jews obtained certainty as to his worship, while the Samaritans received nothing certain from the mouth of God. In the second part, he declares that the ceremonies hitherto observed by the Jews would soon be at an end.

22.You worship what you know not, we worship what we know. This is a sentence worthy of being remembered, and teaches us that we ought not to attempt any thing in religion rashly or at random; because, unless there be knowledge, it is not God that we worship, but a phantom or idol. All good intentions, as they are called, are struck by this sentence, as by a thunderbolt; for we learn from it, that men can do nothing but err, when they are guided by their own opinion without the word or command of God. For Christ, defending the person and cause of his nation, shows that the Jews are widely different from the Samaritans. And why?

Because salvation is from the Jews. By these words he means that they have the superiority in this respect, that God had made with them a covenant of eternal salvation. Some restrict it to Christ, who was descended from the Jews; and, indeed, since

all the promises of God were confirmed and ratified in him,
(2 Corinthians 1:20,)

there is no salvation but in him. But as there can be no doubt that Christ gives the preference to the Jews on this ground, that they do not worship some unknown deity, but God alone, who revealed himself to them, and by whom they were adopted as his people; by the word salvation we ought to understand that saving manifestation which had been made to them concerning the heavenly doctrine.

But why does he say that it was from the Jews, when it was rather deposited with them, that they alone might enjoy it? He alludes, in my opinion, to what had been predicted by the Prophets, that the Law would go forth from Zion, (Isaiah 2:3; Micah 4:2,) for they were separated for a time from the rest of the nations on the express condition, that the pure knowledge of God should flow out from them to the whole world. It amounts to this, that God is not properly worshipped but by the certainty of faith, which cannot be produced in any other way than by the word of God. Hence it follows that all who forsake the word fall into idolatry; for Christ plainly testifies that an idol, or an imagination of their own brain, is substituted for God, when men are ignorant of the true God; and he charges with ignorance all to whom God has not revealed himself, for as soon as we are deprived of the light of his word, darkness and blindness reign.

It ought to be observed that the Jews, when they had treacherously set aside the covenant of eternal life which God had made with their fathers, were deprived of the treasure which they had till that time enjoyed; for they had not yet been driven out of the Church of God. Now that they deny the Son, they have nothing in common with the Father;

for whosoever denieth the Son hath not the Father,
(1 John 2:23.)

The same judgment must be formed concerning all who have turned aside from the pure faith of the Gospel to their own inventions and the traditions of men. Although they who worship God according to their own judgment or human traditions flatter and applaud themselves in their obstinacy, this single word, thundering from heaven, lays prostrate all that they imagine to be divine and holy, You worship what you do not know It follows from this that, if we wish our religion to be approved by God, it must rest on knowledge obtained from His word.