Proverbs 12:20 states 'deceit is in the heart of those who devise evil'—identical to harboring deceit in the heart from Proverbs 26:24.

Proverbs 12:17 describes a false witness uttering deceit—just as the hater uses his lips to disguise his true feelings.

Proverbs 12:5 says the wicked's counsels are deceitful, directly matching the deceit harbored in the heart of the hater.

In Proverbs 10:18, concealing hatred requires lying lips — a thematic parallel to disguising malice with speech.

In Proverbs 29:5, flattery spreads a net — a form of deceptive speech, but less specific to hiding hatred here.

In Psalm 55:21, smooth speech hides war — directly parallels the deceptive lips and hidden evil here.

In 1 John 3:15, hatred is equated to murder — deepening the understanding of the evil harbored in the heart here.

In Matthew 2:8, Herod's feigned worship conceals murderous intent — a narrative example of the malicious deception here.

In Jeremiah 9:8, speaking peace while planning ambush is nearly identical to the hidden evil of this verse.

Genesis 4:8 shows Cain speaking to Abel before killing him—a narrative example of concealed hatred leading to violence.

In Psalm 41:6, the visitor speaks empty words while gathering evil — a direct parallel to hiding hatred with lips.

In Nehemiah 6:2, Sanballat's invitation to a meeting masks his intent to harm — deceptive words covering hostility.

In 2 Samuel 20:9, Joab's greeting 'Is it well, my brother?' and kiss disguise his deadly stab — classic hate masked with lips.

In 2 Samuel 13:27, Absalom's invitation to a feast conceals his plot to kill Amnon — friendly words covering murder.

In 2 Samuel 13:20, Absalom tells Tamar to keep quiet, hiding his hatred for Amnon under comforting words.

In 1 Samuel 19:6, Saul swears David won't be killed, yet later pursues him — deceptive words masking murderous intent.

In 1 Samuel 18:21, Saul feigns offering his daughter to David while plotting his death — a precise example of hatred disguised with lips.

Numbers 35:20 describes murder motivated by hatred, showing the violent outcome that hidden hatred can produce.

Leviticus 19:17 commands not to hate in your heart and to reason openly—directly opposing the hidden hatred in Proverbs 26:24.

Genesis 34:13 recounts Jacob's sons answering Shechem deceitfully to hide their vengeful anger—a direct illustration of the hater's disguise.

In Jeremiah 9:4, everyone deals craftily and slanders — a general scene of deceit mirroring the hidden evil here.

Ephesians 4:31 commands removal of bitterness and malice — contrasting with the malicious behavior described here.