Isaiah 37:25 records Sennacherib's boast of abundant water — contrasting with the desperate urine-drinking Rabshakeh predicts.

Deuteronomy 28:53-57 lays out the covenant curse of siege cannibalism, which the Rabshakeh's crude threat of eating dung and urine echoes as the inevitable result of rebellion.

2 Kings 6:25-29 gives a historical example of siege cannibalism during Samaria's siege, confirming the reality of the horror the Rabshakeh taunts with.

2 Kings 18:27 is the parallel account of the same event, word-for-word identical, providing the broader narrative context.

Jeremiah 19:9 prophesies that God will make Jerusalem's inhabitants eat their children during siege, a later fulfillment of the same kind of judgment Rabshakeh describes.

Lamentations 4:10 describes compassionate women boiling their own children during siege, a graphic fulfillment of the kind of desperation Rabshakeh threatens.

2 Kings 18:26 records the officials' plea to speak Aramaic so the people won't understand, setting up the Rabshakeh's crude reply in verse 27.

2 Chronicles 32:11 presents the Rabshakeh's taunt in a different wording, emphasizing death by famine and thirst rather than dung and urine.