The first teaching given to us in writing is, “In the beginning God made the heaven and the earth” and all the other statements about creation. By faith we understand that the ages were brought to completion by the word of God so that what is seen might be made from what is invisible (Hebrews 11:3): the body’s eye did not recognize the God of all as creator; instead, faith instructed us that God, who has always existed, created what did not exist. There is, after all, no example of this among human beings; yet though learning nothing of the kind from nature, we have in faith a teacher of the unexpected. Human beings, of course, make something out of something, whereas the God of all produced what exists out of nothing.
(Theodoret of Cyrrus, Commentary on the Letters of St. Paul, pp. 181-182)