Esther 6:4 has Haman coming to request Mordecai's hanging, directly following the advice in 5:14—the plan in motion.

Esther 7:9 reveals Haman hanged on the same gallows he built for Mordecai—a dramatic reversal of his evil plan.

Esther 7:10 reveals the ironic reversal: Haman is hanged on the very gallows he built for Mordecai, undoing his plot here.

In Esther 2:23, the conspirators were hanged on a gallows; Haman now builds one for Mordecai, foreshadowing his own fate.

In Esther 6:14, Haman is hurried to the banquet where his downfall begins, contrasting his earlier delight over the gallows.

Esther 3:8-15 shows Haman's earlier plot to destroy all Jews, paralleling his new specific murder plot against Mordecai.

1 Kings 21:7 has Jezebel counsel Ahab to murder Naboth and be cheerful—a direct parallel to Zeresh's murderous advice to Haman.

Proverbs 1:18 warns that schemers ambush themselves — Haman's gallows become his own death.

Psalm 9:15 shows the wicked caught in their own trap — the same irony as Haman's gallows.

Psalm 7:13-16 describes the wicked falling into their own pit — exactly what happens when Haman's gallows become his own death.

In Micah 2:1, woe to those who plot evil on their beds; Haman devises Mordecai's execution, bringing woe upon himself.

1 Kings 21:25 summarizes Ahab incited by Jezebel, mirroring Haman incited by his wife Zeresh to do evil.

In Psalm 140:9, the wicked's own mischief covers them; Haman's plot will ultimately backfire on him.

2 Chronicles 22:3 says Ahaziah's mother counseled him wickedly, paralleling Zeresh's evil counsel to Haman.

2 Chronicles 22:4 notes Ahaziah's counselors from Ahab's house led him to destruction, similar to Haman's counselors advising the gallows.

In Psalm 36:4, the wicked plot evil on their beds; Haman does the same, devising Mordecai's death with his advisors.

In Psalm 146:9, God thwarts the way of the wicked; Haman's plan to hang Mordecai will be reversed.