John Calvin on Acts 15:24

24. Certain which went out from us. We see that there was no respect of persons among these holy men, which doth always corrupt sound and right judgments. They confess that there were knaves of their own company; and yet they do no whit flatter them, or, through corrupt favor, incline to cover their error; yea, rather in condemning them freely, they spare not even themselves. And, first, they pluck from their faces that visure [mask] which they had abused, to deceive withal. They boasted that they were privy to the meaning of the apostles. “Se apostolorum mentem tenere,” that they knew the mind of the apostles. The apostles reprove them, and condemn them of and for lying in that false pretense, when they utterly deny that they did command any such thing. Again, they accuse them far more sharply, that they troubled the Church and subverted souls. For by this means they bring them in contempt and detestation with the godly, because they cannot be admitted but to their destruction. But false teachers are said to subvert souls, because the truth of God doth edify or build them up, and so this speech containeth a [this] general doctrine, Unless we will willingly have our souls drawn headlong from being any longer temples of the Holy Ghost, and unless we desire their ruin, we must beware of those which go about to lead us away from the pure gospel. That which they say touching the keeping of the law doth only appertain unto ceremonies, though we must always remember, that they did so intreat of ceremonies; that [as if] both the salvation and also the righteousness of men did therein consist. For the false apostles did command that they should be kept, as if righteousness came by the law and salvation did depend upon works.