Matthew 7:16-18 teaches that a tree is known by its fruit — the same principle as 'out of the wicked comes wickedness' here.

Matthew 12:33 repeats the 'tree known by its fruit' saying — directly parallel to the proverb 'out of the wicked comes wickedness'.

Matthew 12:34 says out of the abundance of the heart the mouth speaks — echoing that wickedness proceeds from the wicked.

Matthew 15:19 lists evils that come from the heart — consistent with the proverb that wickedness comes from the wicked.

Daniel 12:10 directly states 'the wicked shall act wickedly' — a clear echo of the same proverb that wickedness proceeds from the wicked.

Matthew 15:18 teaches that what comes out of the mouth proceeds from the heart — parallel to 'wickedness from the wicked' as internal source.

Isaiah 32:6 expands the proverb: a fool's heart produces iniquity and ungodliness — evil deeds from an evil character.

1 Thessalonians 5:15 commands not to repay evil for evil — applying the same proverb by refraining from retaliation, as David did.