“Therefore, in keeping with the teaching Luke gives here, let us learn that we constitute a true church of God when we try our best to increase the number of believers. And then each one of us, where we are, will apply all our effort to instructing our neighbours and leading them to the knowledge of God, as much by our words as by our showing them good examples and good behaviour. That is also why holy Scripture exhorts us to often to win to God those who remain alienated from his church, for we see unbelievers as poor lost sheep. Our Lord has not given us insight into his truth for our advantage alone, but for sharing it with others. Because we see them as madmen casting themselves into hell, we must, to the extent we can, prevent them from doing so and procure their salvation.” John Calvin, Sermons on the Acts of the Apostles: Chapters 1-7, p. 335.