1. By David. Judge me, O Lord, for in my innocence I have walked, and in the Lord I have trusted-I shall not falter.
2. Try me, O Lord, and test me; refine my mind and heart.
3. For Your kindness is before my eyes, and I have walked constantly in Your truth.
4. I did not sit with men of falsehood, and with hypocrites I will not mingle.
5. I detested the company of evildoers, and with the wicked I will not sit.

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. I wash my hands in purity, and circle Your altar, O Lord,
7. to give voice to thanks, and to recount all Your wonders.
8. I love the shelter of Your House, O Lord, and the place where Your glory resides.
9. Gather not in my soul with sinners, nor my life with men of bloodshed,
10. In whose hands are schemes, and whose right hand is filled with bribes.
11. But I walk in my innocence; redeem me and show me favor.
12. My foot stands on level ground; in assemblies I will bless the Lord.