1. For the Conductor, a psalm by David.
2. Rescue me from the evil man, protect me from the man of violence,
3. who devise evil schemes in their heart; every day they gather for wars.
4. They sharpen their tongues like a serpent; the spider's venom is forever under their lips.
5. Guard me, Lord, from the hands of the wicked, protect me from the man of violence-those who plot to cause my steps to slip.

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. Arrogant ones have hidden a snare for me, and ropes; they spread a net by my path, they set traps for me continually.
7. I said to the Lord, "You are my God!" Listen, O Lord, to the voice of my pleas.
8. God, my Lord, the strength of my deliverance, You sheltered my head on the day of armed battle.
9. Grant not, O Lord, the desires of the wicked; fulfill not his scheme, make it unattainable forever.
10. As for the head of my besiegers, let the deceit of their own lips bury them.
11. Let burning coals fall upon them; let it cast them down into the fire, into deep pits, never to rise again.
12. Let not the slanderous man be established in the land; let the evil of the man of violence trap him until he is overthrown.
13. I know that the Lord will execute judgement for the poor, justice for the needy.
14. Indeed, the righteous will extol Your Name; the upright will dwell in Your presence.