4:14-21 In reproving for sin, we should distinguish between sinners and their sins. Reproofs that kindly and affectionately warn, are likely to reform. Though the apostle spoke with authority as a parent, he would rather beseech them in love. And as ministers are to set an example, others must follow them, as far as they follow Christ in faith and practice. Christians may mistake and differ in their views, but Christ and Christian truth are the same yesterday, to-day, and for ever. Whenever the gospel is effectual, it comes not in word only, but also in power, by the Holy Spirit, quickening dead sinners, delivering persons from the slavery of sin and Satan, renewing them both inwardly and outwardly, and comforting, strengthening, and establishing the saints, which cannot be done by the persuasive language of men, but by the power of God. And it is a happy temper, to have the spirit of love and meekness bear the rule, yet to maintain just authority.
15. ten thousand—implying that the Corinthians had more of them than was desirable.
instructors—tutors who had the care of rearing, but had not the rights, or peculiar affection, of the father, who alone had begotten them spiritually.
in Christ—Paul admits that these "instructors" were not mere legalists, but evangelical teachers. He uses, however, a stronger phrase of himself in begetting them spiritually, "In Christ Jesus," implying both the Saviour's office and person. As Paul was the means of spiritually regenerating them, and yet "baptized none of them save Crispus, Gaius, and the household of Stephanas," regeneration cannot be inseparably in and by baptism (1Co 1:14-17).