The term "blessed" (used 26 out of 45 times in Psalms) is recurrent in Wisdom Literature and describes the faithful followers.
1. Job 5:17; Ps. 94:12 — disciplined by Shaddai
2. Psalm 1:1 — studies and walks in God's word
3. Psalm 2:12 — takes refuge in YHWH
4. Psalm 32:1-2 — sin is forgiven
5. Psalm 40:4; 84:12; Pro. 16:20 — trusts in YHWH
6. Psalm 41:1-3; Pro. 14:21 — considers the poor
7. Psalm 80:6 — strength is in YHWH
8. Psalm 89:12 — know joy and walk in the light of YHWH's countenance
9. Psalm 119:2 — seek Him with whole heart, observe His testimony
10. Psalm 112:1; 128:1 — fears YHWH, walks in His ways
11. Psalm 146:5 — YHWH is his help
12. Proverbs 3:13 — finds wisdom
13. Proverbs 8:32,34 — listens to YHWH, keeps His ways
14. Proverbs 28:14 — fears YHWH
15. Proverbs 29:18 — keeps YHWH's laws