Genesis 1:31 declares creation 'very good' — the original state that Romans 3:12's 'no one does good' contrasts with after the fall.

Psalm 14:3 is the exact verse Paul quotes here—declaring all have turned away and become corrupt, making it a direct citation.

Psalm 53:1 is the direct OT source Paul quotes — the same declaration that no one does good, establishing the biblical basis.

Ecclesiastes 7:20 makes the same observation that no one is righteous — a wisdom parallel to Paul's quotation from the Psalms.

Isaiah 53:6 says we all like sheep have gone astray—directly parallel to Romans 3:12's 'all have turned away.'

In Isaiah 64:6, the same theme: all have become unclean, our righteous deeds are filthy. This deepens the picture of universal sinfulness.

Ephesians 2:3 reinforces Paul's point: all people were by nature objects of wrath — no one does good.

Ephesians 2:8-10 shows salvation by grace apart from works, then creates believers for good works—addressing the inability stated in Romans 3:12.

Philippians 2:13 reveals God works in believers to will and do good, directly answering the inability to do good in Romans 3:12.

Titus 2:14 states Christ redeemed us from lawlessness and purifies a people zealous for good works—the very good Romans 3:12 says no one does.

Psalm 53:3 is the exact source Paul quotes in Romans 3:12, affirming that no one does good.

Mark 10:18 echoes that only God is good, reinforcing Paul's claim that no one does good — universal sinfulness.

Genesis 6:6 shows God's grief over humanity's wickedness — a narrative example of the universal turning away Paul describes.

Genesis 6:7 records God's judgment on sinful humanity — the outcome of the 'turned away' state Paul references.

1 Peter 2:25 uses the straying sheep image but adds the hope of returning to the Shepherd — beyond Paul's 'all have turned away'.