His Essay on the Connexion between the Doctrine of Justification by the Imputed Righteousness of Christ and Holiness of Life (1756) was his principal theological work.
Chastity is the flowering of man; and what are called Genius, Heroism, Holiness, and the like, are but various fruits which succeed it.
Your Holiness (he wrote) is sovereign of Rome, but I am its emperor; and he threatened to annul the presumed donation of Rome by Charlemagne, unless the pope yielded implicit obedience to him in all temporal affairs.
Mirandola so convinced Pope Sixtus of the paramount importance of the Kabbalah as an auxiliary to Christianity that his holiness exerted himself to have Kabbalistic writings translated into Latin for the use of divinity students.
In the Deuteronomist the Passover sacrifice can be from either flock or herd, whereas in the Holiness Code only lamb is mentioned, and in the Priestly Code either kid or lamb.