(English translation got from website: https://www.chabad.org/library/bible_cdo 
except for verse 10, which follows the translation of  New American Standard Bible  )

1. For the conductor, al tashcheth; of David a michtam.
2. Is it true that You were silent about the righteousness that You should have spoken, the equities [with which] You should have judged the children of men?
3. Even in your heart, you plot injustice; in the earth, you weigh down the violence of your hands.
4. The wicked become estranged [even] from the womb; those who speak lies go astray from birth.
5. They have venom like the venom of a serpent, like a deaf cobra that closes its ear,
6. Which will not hear the voice of charmers, the most cunning caster of spells.
7. O God, smash their teeth in their mouth; break the molars of lions, O Lord.
8. Let them be rejected; let them walk as [through] water; He will aim His arrows as though they are cut down.
9. Like a snail, which continuously melts, a mole [and a] stillbirth, which did not see the sun.
10. Before your pots can feel the fire of thorns He will sweep them away with a whirlwind, the green and the burning alike.
    
11. The righteous man will rejoice because he saw revenge; he will bathe his feet in the blood of the wicked.
12. And man will say, « Truly, the righteous man has reward; truly there is a God Who judges on earth. »