The foregoing may be elucidated by the examples given above. When Holy Writ describes in figurative language and Oriental, demonstrative style, how God created the heaven and earth, the sun and moon, the sea and its contents, it means to teach us religious truths: that God is the First Cause of everything, and hence that the sun and moon, for instance, are not uncreated deities, as the Egyptian believed them to be. The narrative need not be taken in a literal sense, as if God immediately formed everything in the exact condition as it now appears to us; it may be interpreted in the sense that God let the present condition of things gradually grow out of the forces and materials and plan of nature He created, the result of a lengthy evolution. When our Lord tells us in the gospel that His Father in heaven feeds the birds of the air and clothes the grass of the field, we know that this is to be understood as a mediate action of God, which He exercises through the instinct of animals and through natural forces which He created for the purpose. Now when former ages, reading the narrative of Genesis, generally understood an immediate creation of the world, because the knowledge of nature at the time did not admit of any other interpretation, it is by no means necessary to conclude from it that every other interpretation must be rejected as against the Bible, or that the Church herself has prescribed this literal interpretation as the only correct one. As is known, _St. Augustine_, the greatest Father of the Church, had another very liberal explanation of the Genesis narrative, and the Church has never censured him. (He taught that the whole world had been created at one time, and that the six days of the Mosaic narrative were the logical divisions of an account of the various orders of creatures.) And now the interpretations vary greatly. The passages in Scripture, in which, according to popular modes of expression, the sun is said to rise and set and revolve about the earth, the latter standing in the centre of the world—these, too, were interpreted literally in the days of the Fathers: there was no cause for interpreting them otherwise; but it was only due to defective knowledge of nature at the time. These temporary errors remained till corrected by research in the field of the natural sciences: had the discoveries been made sooner, the errors, too, would have disappeared sooner. The Church knows, and the holy Fathers knew, that it is not the purpose of Holy Writ to teach profane sciences, but to instruct in faith and morals; if it speaks of other matters, it is but occasionally, and then in the idiom of common life, which is not the same as the scientific language of the specialist. Indeed, the Bible does not intend to give scientific instruction in such matters, nor could it have done so at a time when men were not ripe for such enlightenment.