Acts 15:8

2. He puts them in mind how remarkably God owned him in preaching to the Gentiles, and gave testimony to their sincerity in embracing the Christian faith (v. 8): "God, who knows the hearts, and therefore is able to judge infallibly of men, bore them witness that they were his indeed, by giving them the Holy Ghost; not only the graces and comforts, but the extraordinary miraculous gifts of the Holy Ghost, even as he did unto us apostles." See ch. 11 15-17. Note, The Lord knows those that are his, for he knows men's hearts; and we are as our hearts are. Those to whom God gives the Holy Ghost, he thereby bears witness to that they are his; hence we are said to be sealed with that Holy Spirit of promise—marked for God. God had bidden the Gentiles welcome to the privilege of communion with him, without requiring them to be circumcised and to keep the law; and therefore shall not we admit them into communion with us but upon those terms? "God has put no difference between us and them (v. 9); they, though Gentiles, are as welcome to the grace of Christ and the throne of grace as we Jews are; why then should we set them at a distance, as if we were holier than they?" Isa 65 5. Note, We ought not to make any conditions of our brethren's acceptance with us but such as God has made the conditions of their acceptance with him, Rom 14 3. Now the Gentiles were fitted for communion with God, in having their hearts purified by faith, and that faith God's own work in them; and therefore why should we think them unfit for communion with us, unless they will submit to the ceremonial purifying enjoined by the law to us? Note, (1.) By faith the heart is purified; we are not only justified, and conscience purified, but the work of sanctification is begun and carried on. (2.) Those that have their hearts purified by faith are therein made so nearly to resemble one another, that, whatever difference there may be between them, no account is to be made of it; for the faith of all the saints is alike precious, and has like precious effects (2 Peter 1 1), and those that by it are united to Christ are so to look upon themselves as joined to one another as that all distinctions, even that between Jew and Gentile, are merged and swallowed up in it.

Verses 7-21 We see from the words "purifying their hearts by faith," and the address of St. Peter, that justification by faith, and sanctification by the Holy Ghost, cannot be separated; and that both are the gift of God. We have great cause to bless God that we have heard the gospel. May we have that faith which the great Searcher of hearts approves, and attests by the seal of the Holy Spirit. Then our hearts and consciences will be purified from the guilt of sin, and we shall be freed from the burdens some try to lay upon the disciples of Christ. Paul and Barnabas showed by plain matters of fact, that God owned the preaching of the pure gospel to the Gentiles without the law of Moses; therefore to press that law upon them, was to undo what God had done. The opinion of James was, that the Gentile converts ought not to be troubled about Jewish rites, but that they should abstain from meats offered to idols, so that they might show their hatred of idolatry. Also, that they should be cautioned against fornication, which was not abhorred by the Gentiles as it should be, and even formed a part of some of their rites. They were counselled to abstain from things strangled, and from eating blood; this was forbidden by the law of Moses, and also here, from reverence to the blood of the sacrifices, which being then still offered, it would needlessly grieve the Jewish converts, and further prejudice the unconverted Jews. But as the reason has long ceased, we are left free in this, as in the like matters. Let converts be warned to avoid all appearances of the evils which they formerly practised, or are likely to be tempted to; and caution them to use Christian liberty with moderation and prudence.