Hear my voice, O God, in my prayer: preserve my life from fear of the enemy.  Hide me from the secret counsel of the wicked; from the insurrection of the workers of iniquity:  Who whet their tongue like a sword, and bend their bows to shoot their arrows, even bitter words:   That they may shoot in secret at the perfect: suddenly do they shoot at him, and fear not.  They encourage themselves in an evil matter: they commune of laying snares privily; they say, “Who shall see them?”  They search out iniquities; they accomplish a diligent search: both the inward thought of every one of them, and the heart, is deep.

But God shall shoot at them with an arrow; suddenly shall they be wounded.  So they shall make their own tongue to fall upon themselves: all that see them shall flee away.  And all men shall fear, and shall declare the work of God; for they shall wisely consider of His doing.

The righteous shall be glad in the LORD, and shall trust in Him; and all the upright in heart shall glory.

Psalm 64:1-10