(20) They glorified the Lord.--The better MSS. give, "they glorified God." The tense implies continued action, and although its meaning would be satisfied by assuming mere ejaculations of wonder and praise, it is, at least, not improbable that there was a more formal thanksgiving.

How many thousands of Jews there are which believe.--Literally, how many myriads--i.e., tens of thousands. The numbers seem large if we think of the population of Jerusalem only, but the crowds that came from all quarters to the Feast of Pentecost (see Note on Acts 2:1) would fully justify the statement. The speaker here is obviously St. James, as the president of the assembly. There is no trace of the presence of any of the Apostles.

They are all zealous of the law.--Better, the word being a substantive and not an adjective, zealots for the law. The term was an almost technical one for the most rigid class of Pharisees. (See Note on Simon the Canaanite, Matthew 10:4.) So St. Paul describes himself as in this sense a "zealot" (Acts 22:3; Galatians 1:14).

Verse 20. - They, when they heard it for when they heard it, they, A.V.; God for the Lord, A.V. and T.R.; they said for said, A.V.; there are among the Jews of them which have believed for of Jews there are which believe, A.V. and T.R.; for the Law for of the Law, A.V. They... glorified God. There is not the slightest symptom on the part of James and the elders of unfriendliness towards St. Paul, or jealousy or opposition to his work among the Gentiles (comp. Galatians 2:7-9). The appellation brother is another indication of friendly feeling. Thousands (Greek μυριάδες, tens of thousands). These need not be deemed to be all Jerusalem Jews; if applied to the Church at Jerusalem only, such a word would be probably a gross exaggeration; but there were great numbers of Jews of the dispersion assembled at Jerusalem for Pentecost - probably all the Christian Jews of Judaea, and many from Syria, Galatia, Pontus, and the various countries enumerated in Acts 2:9-11. So that there might be several myriads of converted Jews altogether. All zealous for the Law. This is a remarkable testimony to the unanimity of the Christian Jews in their attachment to the Law of Moses, and throws light upon the Epistle to the Galatians and many other passages in St. Paul's Epistles. It explains the great difficulty experienced in the early Church in dealing with converts from Judaism. Zealous (ζηλωταὶ). So the fierce sect of Zealots were called at the time of the Jewish wars (see Josephus, ' Bell. Jud.,' 4. 6:1, and elsewhere).

21:19-26 Paul ascribed all his success to God, and to God they gave the praise. God had honoured him more than any of the apostles, yet they did not envy him; but on the contrary, glorified the Lord. They could not do more to encourage Paul to go on cheerfully in his work. James and the elders of the church at Jerusalem, asked Paul to gratify the believing Jews, by some compliance with the ceremonial law. They thought it was prudent in him to conform thus far. It was great weakness to be so fond of the shadows, when the substance was come. The religion Paul preached, tended not to destroy the law, but to fulfil it. He preached Christ, the end of the law for righteousness, and repentance and faith, in which we are to make great use of the law. The weakness and evil of the human heart strongly appear, when we consider how many, even of the disciples of Christ, had not due regard to the most eminent minister that even lived. Not the excellence of his character, nor the success with which God blessed his labours, could gain their esteem and affection, seeing that he did not render the same respect as themselves to mere ceremonial observances. How watchful should we be against prejudices! The apostles were not free from blame in all they did; and it would be hard to defend Paul from the charge of giving way too much in this matter. It is vain to attempt to court the favour of zealots, or bigots to a party. This compliance of Paul did not answer, for the very thing by which he hoped to pacify the Jews, provoked them, and brought him into trouble. But the all-wise God overruled both their advice and Paul's compliance with it, to serve a better purpose than was intended. It was in vain to think of pleasing men who would be pleased with nothing but the rooting out of Christianity. Integrity and uprightness will be more likely to preserve us than insincere compliances. And it should warn us not to press men to doing what is contrary to their own judgment to oblige us.And when they heard it,.... The narrative of the wonderful spread of the Gospel among the Gentiles, and the numerous conversions of them:

they glorified the Lord; or "God", as the Alexandrian copy, the Vulgate Latin, and Ethiopic versions read; as Paul ascribed all to God, so they give the glory of it to him, and in this they were both agreed:

and said unto him; perhaps James in the name of them all, and as their mouth:

thou seest, brother; for so he was to James, both as a believer, and a minister of the word, and as an apostle:

how many thousands of Jews there are which believe; there were many thousands converted at Jerusalem upon the first preaching of the Gospel, after Christ's ascension; see Acts 2:41 and the number might be much increased since; though it may be, that reference is had not only to the number of the members of the church at Jerusalem, but to all the believing Jews in Judea, who were now come up to Jerusalem, to keep the feast of Pentecost; since it is in the Greek, "how many myriads there are", and one myriad contains ten thousand:

and they are all zealous of the law; of the law of Moses, of the ceremonial law, as Paul might see by their being at Jerusalem, to keep this feast; for though they believed in Jesus of Nazareth as the true Messiah, yet they had not light enough to see, that he was the sum and substance of all the ceremonies of the law, and that they all ended in him; and therefore were zealous in the observance of them, and could not bear to hear of their abrogation.