“How then are you able to look these Scriptures in the face, and not blush? O what a sin is this! Are you willing to be ranked with fools, dogs, sinners, heathens, and take your lot with them? God has planted that affection of shame in your nature to be as a guard against such filthy lust; it is a sin that has filthiness enough in it to defile the tongue that mentions it, Ephesians 5:3.
– John Flavel, Impure Lust, p. 11-12