1. For the Conductor, a psalm by the sons of Korach.
2. All you nations, clap hands; sound [the shofar] to God with a sound of jubilation.
3. For the Lord is most high, awesome; a great King over all the earth.
4. He subdues peoples under us, nations beneath our feet.
5. He chooses our heritage for us, the glory of Jacob whom He loves eternally.

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. God ascends through teruah, the Lord-through the sound of the shofar.
7. Sing, O sing to God; sing, O sing to our King.
8. For God is King over all the earth; sing, O man of understanding.
9. God reigns over the nations; God is seated on His holy throne.
10. The most noble of the nations are gathered, the nation of the God of Abraham; for the protectors of the earth belong to God; He is greatly exalted.