Commentaries:
Adam Clarke
No faithfulness in their mouth - They make professions of friendship; but all is hollow and deceitful: "They flatter with their tongue."
Very wickedness - Their heart is full of all kinds of depravity.
Their throat is an open sepulcher - It is continually gaping for the dead; and sends forth effluvia destructive to the living. I fear that this is too true a picture of the whole human race, totally corrupt within, and abominable without. The heart is the center and spring of this corruption; and the words and actions of men, which proceed from this source, will send out incessant streams of various impurity; and thus they continue till the grace of God changes and purifies the heart.
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