I will tell you how her faith was this above all: it made her believe that her God preferred mercy even to sacrifice; she was certain that her God was working in Christ; she touched Him, therefore, nor as a holy man simply, nor as a prophet, whom she knew to be capable of contamination by reason of his human nature, but as very God, whom she assumed to be beyond all possibility of pollution by any uncleanness.
Tertullian
The Five Books Against Marcion, Book IV
Chapter XX