4 And Moses said, Thus saith the LORD, About midnight will I go out into the midst of Egypt:
[AD 311] Methodius of Olympus on Exodus 11:4
Midnight stands for the reign of the antichrist, when the destroying angel will pass over the houses.

[AD 585] Cassiodorus on Exodus 11:4
The words “I rose at midnight” are not without value. They knew that at that hour the firstborn of the Egyptians were smitten, that at that time the bonds of Peter, Paul and Silas who lay in prison were loosed, that the bridegroom would also come at midnight.