Why does the psalmist ask God not to gather him with sinners?

In Psalm 26:9-10, the psalmist makes a poignant plea to God, asking not to gather his soul with sinners or those involved in wickedness. This request stems from a desire to be differentiated from those who engage in evil and a recognition of their ultimate judgment. The psalmist understands the consequences of sin and desires to remain in close communion with God, thereby demonstrating a commitment to righteousness and a sincere humility before God’s holiness. This reflects the believer's longing for justice and God's mercy.