1. For the Conductor, a plea to be spared destruction; by David, a michtam.
2. Is it true that you are mute [instead of] speaking justice? [Instead of] judging men with fairness?
3. Even with your heart you wreak injustice upon the land; you justify the violence of your hands.
4. The wicked are estranged from the womb; from birth do the speakers of falsehood stray.
5. Their venom is like the venom of a snake; like the deaf viper that closes its ear

Tehillim Ohel Yoseph Yitzchok (Kehot Publication Society)

Tehillim is recited by Jewish people collectively and individually, as the desire occurs to offer praise and thanksgiving to G-d; or alternitavely, in times of crisis and need, as a form of supplication, and even as a venue to express regret for sin.

6. so as not to hear the voice of charmers, [even] the most skillful caster of spells.
7. O God, smash their teeth in their mouth; shatter the fangs of the young lions, O Lord.
8. Let them melt like water and disappear; when He aims His arrows, may they crumble.
9. Like the snail that melts as it goes along, like the stillbirth of a woman-they never see the sun.
10. Before your tender shoots know [to become] hardened thorns, He will blast them away, as one [uprooting] with vigor and wrath.
11. The righteous one will rejoice when he sees revenge; he will bathe his feet in the blood of the wicked.
12. And man will say, "There is indeed reward for the righteous; indeed there is a God Who judges in the land."