Tertullian

“ Nature, because even if the tongue in dictating remains motionless and quiet, the hand can write nothing which the soul has not dictated; albeit even to the tongue itself the soul may have dictated either something conceived by itself, or else something delivered by another. ”

“ I here appeal to Conscience whether, what another dictated, the soul entertains, [3] and transmits unto the hand, whether with the concomitance or the inaction of the tongue. Enough, that the Lord has said faults are committed in the mind and the conscience. If concupiscence or malice have ascended into a man’s heart, He saith it is held as a deed. [4] You therefore have given a guarantee; which clearly has “ascended into your heart,” which you can neither contend you were ignorant of nor unwilling; for when you gave the guarantee, you knew that you did it ”

“ But there is a certain species of that class, doubly sharpened in deed and word, and mischievous on either side, although it flatter you, as if it were free of danger in each; while it does not seem to be a deed, because it is not laid hold of as a word. ”