The “price which you have to pay” is to accept the mist of having the doubts put into your mind. God has put you into this battle. But he bids you fight. He conquers in his own: he himself is crowned in them, who he crowns. It is not your duty to analyze yourself, as you describe yourself as doing. Any temptation might find an echo in your heart but for the grace of God. It is a saying, that we have the germs of all the deadly sins in us. God has been very merciful to you in letting Satan tempt you in this way, and not in others which might have been more distressing. But God says, “Resist the devil, and he will flee from you.” It does not depend upon you, how long the mist will last. This is in God’s hands. But as long as he allows it to last, you must believe that the sun is behind it, although you do not see it, and all around is damp and clammy.

Anglican theologian Edward Pusey’s letters offer hope for those plagued by unwanted whisperings of doubt.