
Gregory the Great
Catena Aurea · Lukasevangelium 1
And thou, child, shalt be called the Prophet of the Highest: for thou shalt go before the face of the Lord to prepare his ways.
(xix. Mor. sup. Job 28:23.) But all they who by preaching cleanse the hearts of their hearers from the filth of their sins, prepare a way for the coming of wisdom into the heart.