Acts 15:8-9
8. God, which knoweth the hearts—implying that the real question for admission to full standing in the visible Church is the state of the heart. Hence, though that cannot be known by men, no principle of admission to church privileges which reverses this can be sound.
9. put no difference between us and them: purifying their hearts by faith—"Purification" here refers to "sprinkling (of the conscience by the blood of Jesus) from dead works to serve the living God." (See on 1Co 6:11). How rich is this brief description of the inward revolution wrought upon the genuine disciples of the Lord Jesus!
1 Corinthians 1:2
2. the church of God—He calls it so notwithstanding its many blots. Fanatics and sectaries vainly think to anticipate the final sifting of the wheat and tares (Mt 13:27-30). It is a dangerous temptation to think there is no church where there is not apparent perfect purity. He who thinks so, must at last separate from all others and think himself the only holy man in the world, or establish a peculiar sect with a few hypocrites. It was enough for Paul in recognizing the Corinthians as a church, that he saw among them evangelical doctrine, baptism, and the Lord's Supper" [CALVIN]. It was the Church of God, not of this or of that favorite leader [CHRYSOSTOM].
at Corinth—a church at dissolute Corinth—what a paradox of grace! sanctified—consecrated, or set apart as holy to God in (by union with) Christ Jesus. In the Greek there are no words "to them that are"; translate simply, "men sanctified." called to be saints—rather, "called saints"; saints by calling: applied by Paul to all professing members of the Church. As "sanctified in Christ" implies the fountain sources of holiness, the believer's original sanctification in Christ (1Co 6:11; Heb 10:10, 14; 1Pe 1:2) in the purposes of God's grace, so "called saints" refers to their actual call (Ro 8:30), and the end of that call that they should be holy (1Pe 1:15). with all that in every place call upon . . . Christ—The Epistle is intended for these also, as well as for the Corinthians. The true CATHOLIC CHURCH (a term first used by IGNATIUS [Epistle to the Smyræans, 8]): not consisting of those who call themselves from Paul, Cephas, or any other eminent leader (1Co 1:12), but of all, wherever they be, who call on Jesus as their Saviour in sincerity (compare 2Ti 2:22). Still a general unity of discipline and doctrine in the several churches is implied in 1Co 4:17; 7:17; 11-16; 14-33, 36. The worship due to God is here attributed to Jesus (compare Joe 2:32; Mt 4:10; Ac 9:14). both theirs and ours—"in every place which is their home . . . and our home also"; this is added to include the Christians throughout Achaia, not residing in Corinth, the capital (2Co 1:1). Paul feels the home of his converts to be also his own. Compare a similar phrase in Ro 16:13 [CONYBEARE and HOWSON]. "Ours" refers to Paul and Sosthenes, and the Corinthians' home [ALFORD]. BEZA better explains, "Both their Lord and our Lord." All believers have one and the same Lord (1Co 8:6; Eph 4:5); a virtual reproof of the divisions of the Corinthians, as if Christ were divided (1Co 1:13). 1 Corinthians 12:3
3. The negative and positive criteria of inspiration by the Spirit—the rejection or confession of Jesus as Lord [ALFORD] (1Jo 4:2; 5:1). Paul gives a test of truth against the Gentiles; John, against the false prophets.
by the Spirit—rather, as Greek, "IN the Spirit"; that being the power pervading him, and the element in which he speaks [ALFORD], (Mt 16:17; Joh 15:26). of God . . . Holy—The same Spirit is called at one time "the Spirit of GOD"; at another, "the HOLY Ghost," or "Holy Spirit." Infinite Holiness is almost synonymous with Godhead. speaking . . . say—"Speak" implies the act of utterance; "say" refers to that which is uttered. Here, "say" means a spiritual and believing confession of Him. Jesus—not an abstract doctrine, but the historical, living God-man (Ro 10:9). accursed—as the Jews and Gentiles treated Him (Ga 3:13). Compare "to curse Christ" in the heathen PLINY'S letter [Epistles, 10.97]. The spiritual man feels Him to be the Source of all blessings (Eph 1:3) and to be severed from Him is to be accursed (Ro 9:3). Lord—acknowledging himself as His servant (Isa 26:13). "Lord" is the Septuagint translation for the incommunicable Hebrew name JEHOVAH.