Proverbs 11:9

An hypocrite with his mouth destroyeth his neighbour: but through knowledge shall the just be delivered.

Hypocrisy and knowledge

The hypocrite is one who feigns to be what he is not--one whose life is a lie. Selfish, he wears the costume of benevolence; false, he speaks the language of sincerity and truth.

I. Hypocrisy is destructive. The hypocrite, by his deception, has often destroyed the reputation, the peace, end the soul of his neighbour. Hypocrisy--

1. Implies the pernicious. A consciousness of wrongness within is the cause of all hypocrisy.

2. Employs the pernicious. Misrepresentations are its instruments.

II. Knowledge is restorative. Knowledge here is in antithesis with hypocrisy. Real knowledge is truth, reality. It scatters the clouds of ignorance and error, and raises the soul to light, freedom, purity and blessedness. (D. Thomas, D.D.)

The insincere

This verse may be understood with a reference to all insincere professions of friendship and good intentions--to all insinuating and flattering pretensions, adopted for the purpose of affecting a particular end. How many are there who, for objects of their own deceive others; no matter what the result may be to the deceived, provided the deceiver but accomplish his selfish aim. In religion, the hypocrite has a purpose. His religion is not real. He assumes the cloak to cover some secret design. The verse itself suggests the design--the undermining of the principles of others. He insinuates himself into confidence. The confidence increasing, he becomes by degrees more and more bold, till, by slow steps, he unsettles the principles, shakes the faith, dissipates the seriousness, and ruins the souls of others. Hypocrites are awful stumbling blocks. (R. Wardlaw.)