Proverbs 6:23-25

New Catholic Bible

²³ For this command is a lamp, this teaching is a light,^[a]
    and the corrections of discipline point the way to life,
²⁴ to preserve you from an immoral woman,
    from the seductive tongue of an adulteress.
²⁵ Do not lust after her beauty in your heart
    or allow her to entice you with her eyes.