In his commentary on Genesis, John Calvin answers objections to the manner in which Eve was created:

Although to profane persons this method of forming woman may seem ridiculous, and some of these may say that Moses is dealing in fables, yet to us the wonderful providence of God here shines forth; for, to the end that the conjunction of the human race might be the more sacred he purposed that both males and females should spring from one and the same origin. Therefore he created human nature in the person of Adam, and thence formed Eve, that the woman should be only a portion of the whole human race. This is the import of the words of Moses which we have had before, (Genesis 1:28,) “God created man… he made them male and female.” In this manner Adam was taught to recognize himself in his wife, as in a mirror; and Eve, in her turn, to submit herself willingly to her husband, as being taken out of him. But if the two sexes had proceeded from different sources, there would have been occasion either of mutual contempt, or envy, or contentions. And against what do perverse men here object? ‘The narration does not seem credible, since it is at variance with custom.’ As if, indeed, such an objection would have more color than one raised against the usual mode of the production of mankind, if the latter were not known by use and experience.