Prayer as a Means of Grace

You cannot tell what the secret purposes of God are, but you know that God has appointed prayer as the means of obtaining good and averting evil. If you neglect the means which he has directed you to use, you have no reason to expect the blessing which you desire: but if you are induced by his grace to use the means, it is a good sign that you are likely to obtain the desired end.

Edward Bickersteth, A Treatise on Prayer