1. If they suppose that the number of Adam’s posterity were small, and inconsiderable, when Cain slew his brother, and built the city before-mentioned, this will appear to be an ungrounded conjecture, if the blessing, which God conferred on man in his first creation, of _increasing, multiplying, and replenishing the earth_, Gen. i. 28. took place, as it doubtless did, and that in an uncommon degree, the necessity of things requiring it; therefore it is not absurd to suppose, that, at least, as many children were generally born at a birth, and in as early an age of the mother’s life, as have been, or are, in any uncommon instances in latter ages. It is also very probable, that the time of child-bearing continued many years longer than it now doth, in proportion to the number of years, in which the life of man exceeded the present standard thereof; and if the age of man was extended to eight or nine hundred years, we may conclude that there were but few that died young. If these things be taken for granted, which seem not, in the least, improbable, any one, who is curious in his enquiries about this matter, and desires to know what a number of people might be born in _one hundred and thirty years_, will find it will be so great, that they might spread themselves through many countries, far distant from the place where Adam dwelt; and therefore there is no need to suppose, that those, with whom Cain dwelt in the _land of Nod_, were persons that lived before Adam was created. But, that this may more abundantly appear, let it be farther considered, 2. That though we read of Cain’s _going out from the presence of the Lord_, and his dwelling _in the land of Nod_, and _building a city_, immediately after the account of Abel’s death, and therefore it is taken for granted, that this was done soon after, that is, about the _hundred and thirtieth year_ of the world; yet there is no account that this was done immediately, or some few years after, in scripture, which contains the history of the life of Cain, in a few verses, without any chronological account of the time, when these things were said to be done by him, and therefore it seems probable, that this was done some hundreds of years after Cain slew Abel; so that we need not enquire what a number of persons might be in the world in _one hundred and thirty years_, but in _seven or eight hundred years_, and then the world might be almost as full of people, as it is now at present, and then the greatest part of the world might be also degenerate, and strangers to the true religion; so that Cain might easily be said to go out of the presence of the Lord, and choose to live with those that were apostates from him, and served other gods; therefore no advantage is gained against the scripture-history by those, who in contempt of it, defend this ill-grounded opinion.