Verses 3–8
Tongues - Using words as sharp and piercing as the sting of a serpent.
Verse 9
Mischief - The mischief which they design against me, shall fall upon themselves.
Verses 10–12
Coals - Divine vengeance, which is compared to coals of fire.
Verse 13
Dwell - Shall constantly enjoy thy gracious and powerful presence.