Despond not therefore, O man, nor show less of zeal about virtue, than they do of desire for wealth. For things of that kind thou hast often sought and not found, but nevertheless, though thou know this, that thou art not sure to find them, thou puttest in motion every mode of search; but here, although having a promise that thou wilt surely receive, thou dost not show even the smallest part of that earnestness. And if thou dost not receive straightway, do not even thus despair. For to this end He said, “knock,” to signify that even if He should not straightway open the door, we are to continue there.