We know beyond a reasonable doubt that a theistic God exists (see Cosmological, Teleological and Moral Arguments). Since God exists, the universe represented by the closed box is false. The box is open and was created by God. So it is possible for God to intervene in the natural world by performing miracles. In fact, miracles are not only possible; miracles are actual, because the greatest miracle of all—the creation of the universe out of nothing—has already occurred. So with regard to the Bible, if Genesis 1:1 is true—“In the beginning, God created the heavens and the earth”—then every other miracle in the Bible is easy to believe.