One especially vile female loved to tout her "Bible-trained conscience". This is what motivated her to do Saturday evening drive-bys to see who was at whose house socializing. And subsequently endeavor to get her gutless elder husband to get his cronies together to launch investigations as to happenings and especially beverage consumption on those occasions.
And the "Bible-trained conscience" is closely related to the "cause for stumbling". The stronger the impelling of that conscience the greater the liklihood of "stumbling" evidently.