In Daniel 6:23, Daniel is rescued unharmed, answering the king's anxious sleepless night — God proves faithful.

Daniel 2:1 says Nebuchadnezzar's sleep left him due to troubling dreams—the same phrase 'sleep fled' used for Darius here, linking two kings' distress.

In Daniel 10:3, Daniel's own fasting period mirrors the king's distress fast here — both respond to crisis with abstinence.

2 Samuel 12:16 also depicts a king fasting and lying on the ground in distress, similar to Darius's sleepless fast.

1 Kings 21:27 shows Ahab fasting and dejected — echoing Darius's fasting and sleeplessness in distress.

Esther 6:1 shows king Ahasuerus unable to sleep, leading to a pivotal discovery—like Darius's sleeplessness preceding Daniel's deliverance.

Amos 6:4-6 condemns the rich who feast while ignoring ruin—contrasting with Darius who fasts and grieves over Daniel's plight.

Jonah 3:3-9 has the king of Nineveh proclaim a fast in response to judgment—paralleling Darius fasting in distress over Daniel.