On Doubt and Disbelief
The Holy Fathers consider disbelief a passion just like adultery, vanity, pride, etc. Here the enemy is at work more than the person himself. One must battle with disbelief in the same way as with other passions; not by reasoning and mental debate, but by banishing such thoughts by sheer force of will, saying, “I do not consent to these thoughts!” Also, by prayer, especially the Jesus Prayer, which should be as uninterrupted as possible, along with the plea from one’s whole heart for mercy. By the holy name of Jesus, before Whom all the creatures of heaven and earth and lower regions bow down, the enemy’s activity will be weakened, and peace, hope, faith and compunction will enter one’s heart and the temptation will pass.
Brothers through Courtesy