Proverbs 6:14 describes a person who 'devises evil' — the same warning against plotting harm against a neighbor.

Proverbs 6:18 lists 'a heart that devises wicked plans' — directly echoing the plotting against a neighbor here.

Proverbs 16:29 describes a violent man enticing his neighbor — a related form of harming a trusting neighbor.

Proverbs 16:30 speaks of planning dishonest things through body language — a specific method of plotting harm.

Proverbs 21:10 says the wicked shows no mercy to his neighbor — the heart behind plotting harm.

Psalm 35:20 describes enemies devising deceit against the peaceful — mirrors plotting harm against a trusting neighbor.

Psalm 55:20 recounts a companion betraying his friends — echoes betraying a neighbor who trusts you.

Jeremiah 18:18-20 shows people devising schemes against Jeremiah — a concrete case of plotting harm against a neighbor.

Micah 2:1 condemns those who devise wickedness and carry it out — exactly the same sin as plotting harm against a neighbor.

Zechariah 7:10 directly commands 'do not plot evil against each other' — a close parallel to Proverbs 3:29's warning against plotting against a neighbor.

Zechariah 8:17 says 'do not plot evil against your neighbor' — nearly identical to Proverbs 3:29, reinforcing the same ethical command.