God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)
God works with power, and can make the unwilling willing; if He undertake the conversion of a soul, it will be converted. All the pious workings of our heart towards God are the fruit and consequence of the powerful working of His grace in us.
Unbelief is not a misfortune to be pitied; it is a sin to be deplored. Is sinfulness lies in the fact that it contradicts the word of the one true God and thus attributes falsehood to Him.