Psalm 143:1
Hear my prayer, O Lord, give ear to my supplications: in thy faithfulness answer me, and in thy righteousness.
Cross-reference
Psalm 31:1 also begs 'in your righteousness deliver me' — the same plea for mercy based on God's righteousness.
Psalm 71:2 repeats the cry 'in your righteousness deliver me' — directly paralleling the main verse's appeal.
Psalm 27:7 uses nearly identical language: 'Hear, O Lord, when I cry... have mercy... answer me.' It reinforces the same cry for divine hearing.
Psalm 30:10 also pleads 'Hear, O Lord, and have mercy upon me: Lord, be my helper' — a parallel appeal for God's attentive mercy.
Psalm 64:1 begins 'Hear my voice, O God, in my prayer' — a direct parallel to the opening plea for God to hear.
Psalm 36:10 asks God to continue lovingkindness and righteousness to the upright — echoing the same attributes of faithfulness and righteousness in the plea.
Daniel 9:16 invokes God's righteous acts to plead for mercy — the same basis of righteousness as the main verse's appeal.