Psalm 25:11 pleads 'for your name's sake' for forgiveness, mirroring David's appeal for help on the same basis.

Psalm 31:3 uses 'for your name's sake' asking for guidance, reinforcing David's reliance on God's reputation.

Psalm 36:7-9 celebrates the preciousness of God's steadfast love, which the psalmist in 109:21 appeals to for deliverance.

Psalm 63:3 declares God's steadfast love better than life, reinforcing the psalmist's confidence in that love for deliverance.

Psalm 79:9 explicitly asks for help 'for your name's sake,' echoing David's prayer and linking deliverance to God's glory.

Psalm 86:5 affirms God's goodness and abounding steadfast love, the very attributes the psalmist relies on in 109:21.

Psalm 86:15 describes God as abounding in steadfast love and faithfulness, the basis for the psalmist's plea in 109:21.

Psalm 143:11 prays 'for your name's sake, preserve my life,' directly paralleling David's request for help on the same grounds.

Psalm 69:16 repeats the exact phrase 'for your steadfast love is good' — reinforcing the basis of the plea.

Psalm 69:14 also cries 'Deliver me from sinking in the mire' — a parallel plea for rescue from deep trouble.

Psalm 51:1 appeals to God's steadfast love for forgiveness, while 109:21 appeals for deliverance — same attribute, different needs.

Psalm 119:149 appeals 'according to your steadfast love' — a similar appeal to God's loyal love for deliverance.