"Evil force", which occupies parts of Georgia where "our churches are trampled down", will "retreat and definitely be defeated", President Saakashvili said, adding: "I am absolutely sure about it."
"This belief makes me and every Georgian patriot live on," he said.
He was speaking after attending Orthodox Easter service in the Holy Trinity Cathedral in Tbilisi on Sunday.
Saakashvili said that "occupation of 20% of [Georgia's] territory by the enemy" was "of course a temporary situation".
He said that the Easter was symbolizing victory of good over evil and this holiday was fitting well to "the optimistic nature of the Georgian nation."