Proverbs 6:14 expands on the same worthless person, revealing his perverted heart and deceitful actions that accompany his crooked speech.

Proverbs 17:4 describes an evildoer listening to lies — parallels the perverse mouth of the worthless person in 6:12.

Proverbs 2:12 warns against men of perverted speech, the same type as the worthless person here, showing the danger they pose.

Proverbs 4:24 uses the identical phrase 'crooked speech' as a command to avoid it, directly relating to the worthless person's defining trait.

Proverbs 8:13 declares that wisdom hates perverted speech, the very trait of the worthless person, contrasting his character with the fear of the Lord.

Proverbs 17:20 pairs a crooked heart with a devious tongue, reinforcing that the wicked man's speech here reveals inner corruption.

Proverbs 16:30 explicitly links winking eyes to dishonest plans, directly illustrating the devious intention behind the crooked speech here.

James 3:6 calls the tongue a fire that stains the whole body, powerfully illustrating the destructive potential of the worthless man’s crooked speech.

Psalm 10:7 depicts the wicked's mouth full of cursing and deceit, closely mirroring the crooked speech of the worthless person.

Acts 20:30 warns of men speaking twisted things to draw disciples away, directly mirroring the worthless man’s deceitful speech and its harmful purpose.

Matthew 12:34 grounds the crooked speech in an evil heart: ‘out of the abundance of the heart the mouth speaks,’ revealing the inner corruption.

Psalm 52:2-4 portrays the tongue of the wicked plotting destruction and loving lies, directly paralleling the worthless person's crooked speech.

Psalm 36:3 states the wicked's words are trouble and deceit, echoing the crooked speech that defines the worthless person here.

Matthew 15:18 teaches that evil speech flows from the heart—explaining the inner wickedness behind the crooked words here.

Psalm 73:9 adds that their tongue struts through the earth, intensifying the image of arrogant, unchecked speech from the wicked.

Psalm 73:8 describes the wicked scoffing and speaking with malice, a close parallel to the crooked speech of the worthless person.

Micah 2:1 condemns those who plot evil overnight—parallel to the wicked scheming implied by the crooked speech here.

Psalm 59:7 depicts enemies belching out swords with their lips, echoing the same pattern of destructive speech seen in the worthless man.

1 Timothy 5:13 describes idlers who go about gossiping and saying what they should not, a specific application of the worthless man's restless, crooked talk.

Titus 1:10 identifies empty talkers and deceivers, echoing the worthless person’s worthless speech and deceptive nature.

Titus 1:11 shows these deceivers upsetting whole families for gain, revealing the disruptive outcome of the crooked speech described.