1. A psalm by David. Render to the Lord, children of the mighty, render to the Lord honor and strength.
2. Render to the Lord the honor due to His Name; bow down to the Lord in resplendent holiness.
3. The voice of the Lord is over the waters, the God of glory thunders; the Lord is over mighty waters.
4. The voice of the Lord resounds with might; the voice of the Lord resounds with majesty.
5. The voice of the Lord breaks cedars; the Lord shatters the cedars of Lebanon.

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. He makes them leap like a calf, Lebanon and Sirion like a young wild ox.
7. The voice of the Lord strikes flames of fire.
8. The voice of the Lord makes the desert tremble; the Lord causes the desert of Kadesh to tremble.
9. The voice of the Lord causes the does to calve, and strips the forests bare; and in His Sanctuary all proclaim His glory.
10. The Lord sat [as King] at the Flood; the Lord will sit as King forever.
11. The Lord will give strength to His people; the Lord will bless His people with peace.