Mark 6:21
And when a convenient day was come, that Herod on his birthday made a supper to his lords, high captains, and chief estates of Galilee;
Cross-reference
In Genesis 40:20, Pharaoh’s birthday feast leads to lifting up heads (execution and restoration)—directly mirrors Herod’s birthday feast and John’s beheading.
In 2 Samuel 13:23-29, Absalom hosts a feast to murder Amnon—a banquet used as cover for assassination, directly parallel to Herod’s birthday feast where John is killed.
In Daniel 5:1-4, Belshazzar's royal feast leads to blasphemy and judgment — a parallel to Herod's banquet preceding John's execution.
In Hosea 7:5, a king's feast day with drunken princes and scoffing directly mirrors the setting and folly of Herod's birthday banquet.
In Acts 12:2-4, Herod Agrippa kills James and plans to execute Peter after Passover—another Herod using a festival as occasion for murder, parallel to Antipas’s birthday feast.
Matthew 14:6 is the parallel account of the same birthday feast — identical event with Herodias's daughter dancing.
In Genesis 27:41, Esau waits for a convenient time after mourning to kill Jacob—parallel to Herodias using the birthday feast as the opportune moment for John’s murder.