Proverbs 26:24-26 expands on the same theme: concealing hatred with lips, and warns it will be exposed — a direct parallel.

Proverbs 27:6 contrasts faithful wounds with the kisses of an enemy, highlighting the danger of deceptive affection that hides hatred.

Proverbs 26:23 compares fervent lips with an evil heart to a glaze over earthenware, paralleling the hypocrisy of concealed hatred with lying lips.

In 2 Samuel 20:10, Joab's murder of Amasa follows the same deceit: a friendly gesture masking lethal intent, showing the deadly outcome of concealed hatred.

Psalm 101:5 declares that God will destroy those who slander their neighbor, reinforcing the condemnation of slander in Proverbs 10:18.

Psalm 55:21 portrays smooth speech hiding war in the heart—a vivid picture of the concealed hatred and deceit Proverbs condemns.

Psalm 50:20 rebukes those who slander their own brother—echoing the slander spoken of in Proverbs as the act of a fool.

Psalm 15:3 describes the righteous as one who does not slander—contrasting the fool's concealed hatred and slander in Proverbs.

Psalm 12:2 speaks of those with flattering lips and a double heart—matching the hypocrisy of concealing hatred while slandering.

Psalm 5:9 describes flattering tongues and inward destruction—a direct parallel to the lying lips that conceal hatred in Proverbs.

In 2 Samuel 20:9, Joab greets Amasa with a deceitful kiss while hiding a sword—a perfect illustration of concealing hatred with lying lips.

In 2 Samuel 13:23-29, Absalom conceals his hatred for Amnon for two years before orchestrating his murder—a vivid example of the concealed hatred Proverbs warns against.

2 Samuel 3:27 shows Joab's deceitful murder of Abner — he conceals his vengeful hatred, then strikes, illustrating the proverb.

In 1 Samuel 18:22, Saul instructs his servants to speak falsely to David, further exemplifying concealed hatred with lying lips.

In 1 Samuel 18:21, Saul conceals his hatred by offering David his daughter as a snare — a narrative illustration of the proverb.

In Luke 20:20, spies pretend to be righteous to trap Jesus—acting out the concealing of hatred with lying lips that Proverbs calls foolish.

In Luke 20:21, the spies flatter Jesus with insincere praise—a direct example of the lying lips used to conceal hatred.

Genesis 39:14 depicts Potiphar's wife slandering Joseph with a false accusation, directly illustrating the 'spreading slander' condemned here.

Jeremiah 9:4 describes widespread slander and deceit among people, echoing the same warning about slanderers and deceivers.

Ephesians 4:31 lists slander as something believers must put away, reinforcing the warning against it here.

Exodus 23:1 explicitly forbids spreading false reports, which is exactly the slander warned against in this proverb.

Exodus 20:16 prohibits bearing false witness, a specific form of lying that can involve slander, reinforcing the moral law against false speech.

Genesis 37:20 shows Joseph's brothers plotting secretly against him, exemplifying concealed hatred that later leads to deception.

Jeremiah 20:10 depicts the slander and plots of false friends — a real-life example of the concealed hatred and slander Proverbs warns about.

2 Samuel 13:22 records Absalom's silent hatred for Amnon, directly illustrating concealed hatred—though the lying aspect is not explicit.

Ezekiel 22:9 condemns slanderers among God's people, echoing the fool's spreading slander here.

1 Timothy 3:11 instructs women not to be malicious talkers, aligning with the condemnation of slander here.