1. A psalm, a song for the Shabbat day.
2. It is good to praise the Lord, and to sing to Your Name, O Most High;
3. to proclaim Your kindness in the morning, and Your faithfulness in the nights,
4. with a ten-stringed instrument and lyre, to the melody of a harp.
5. For You, Lord, have gladdened me with Your deeds; I sing for joy at the works of Your hand.

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. How great are Your works, O Lord; how very profound Your thoughts!
7. A brutish man cannot know, a fool cannot comprehend this:
8. When the wicked thrive like grass, and all evildoers flourish-it is in order that they may be destroyed forever.
9. But You, Lord, are exalted forever.
10. Indeed, Your enemies, O Lord, indeed Your enemies shall perish; all evildoers shall be scattered.
11. But You have increased my might like that of a wild ox; I am anointed with fresh oil.
12. My eyes have seen [the downfall of] my watchful enemies; my ears have heard [the doom of] the wicked who rise against me.
13. The righteous will flourish like a palm tree, grow tall like a cedar in Lebanon.
14. Planted in the House of the Lord, they shall blossom in the courtyards of our God.
15. They shall be fruitful even in old age; they shall be full of sap and freshness-
16. to declare that the Lord is just; He is my Strength, and there is no injustice in Him.