20.Now there were some Greeks. I do not think that they were Gentiles or uncircumcised, because immediately afterwards it follows that they came to worship. Now it was strictly prohibited by the Roman laws, and severely punished by the Proconsuls and other magistrates, if any person was discovered to have left the worship of his native country and passed over to, the Jewish religion. But Jews, who were scattered throughout Asia and Greece, were allowed to cross the sea for the purpose of offering sacrifices in the temple. Besides, the Jews were not permitted to associate with them in the solemn worship of God, because they thought that the temple, and the sacrifices, and themselves, would in that way be polluted. But though they were the descendants of Jews, yet as they resided at a great distance beyond the sea, we need not wonder that the Evangelist introduces them as strangers and unacquainted with the occurrences which took place at that time in Jerusalem and in places adjacent. The meaning therefore is, that Christ was received as King, not only by the inhabitants of Judea, who had come from villages and townsto the feast, but that the report had also reached men who lived beyond the sea, and who had come from distant countries.
To worship. They might have done this also in their own country; but John describes here solemn worship, which was accompanied by sacrifices. For though religion and the fear of God were not confined to the temple, yet in no other place were they permitted to offer sacrifices to God, nor had they any where else the Ark of the Testimony, which was the token of the presence of God. Every man worshipped God daily at his own house in a spiritual manner; but the saints under the Law were likewise bound to make profession of outward worship and obedience, (18) such as was prescribed by Moses, by appearing in the temple in the presence of God. Such was the design for which the feasts were appointed. And if those men undertook so long a journey at great expense, with great inconvenience, and not without personal risk, that they might not treat with indifference the external profession of their piety, what apology can we now offer, if we do not testify, in our own houses, that we worship the true God? The worship which belonged to the Law has indeed come to an end; but the Lord has left to his Church Baptism, the Lord’ Supper, and public prayer, that in those exercises believers may be employed. If we despise them, therefore. it proves that our desire of godliness is excessively cold.