Blessed: The Hebrew term ’ashrey appears twenty-six times in the Psalms. While some translations use “blessed,” a different term (barak) is used for blessings (Psalms 5:12; 45:2; 107:38).
The godly are people who trust the Lord and try to live in ways that please him. They avoid living under the influence of sinners.
Those who do not fear the Lord are “the wicked” (Psalm 36:1). They oppose those who love God, do right, and the poor and oppressed (see 10:2–13; 37:14). The wicked might seem devoted to God (50:16). Sometimes they enjoy success, but it does not last long (37:35). They will face sadness and ruin when they must deal with the results of their bad actions (1:4–6; 9:16; 32:10).
People who turn away from God's path and rebel against him are sinners (Psalms 25:8; 78:17). They commit serious crimes like adultery (being unfaithful to their spouse) and murder (compare Psalm 51).
sit in the seat of: This expression describes a person who is controlled by sin (compare Psalm 1:2; 26:3–7; Deuteronomy 6:7).
Mockers are people who disrespect and reject God's wisdom. Mockers hate the Lord and insult anyone who tries to correct them (Proverbs 9:7–8). They seek only the “wisdom” that justifies their actions. These bold people have little respect for God, his plans, or his followers (see Psalms 86:14; 119:51, 69, 78, 85, 122). These three terms (wicked, sinners, mockers) describe all kinds of people who do not live in a way that pleases God.