Verses with the word midnight in the Old Testament (7 verses):

Exodus 11:4
And Moses said, Thus saith the LORD, About midnight will I go out into the midst of Egypt:

Exodus 12:29
And it came to pass, that at midnight the LORD smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon; and all the firstborn of cattle.

Judges 16:3
And Samson lay till midnight, and arose at midnight, and took the doors of the gate of the city, and the two posts, and went away with them, bar and all, and put them upon his shoulders, and carried them up to the top of an hill that is before Hebron.

Ruth 3:8
And it came to pass at midnight, that the man was afraid, and turned himself: and, behold, a woman lay at his feet.

1 Kings 3:20
And she arose at midnight, and took my son from beside me, while thine handmaid slept, and laid it in her bosom, and laid her dead child in my bosom.

Job 34:20
In a moment shall they die, and the people shall be troubled at midnight, and pass away: and the mighty shall be taken away without hand.

Psalms 119:62
At midnight I will rise to give thanks unto thee because of thy righteous judgments.