What does Daniel 11:23 mean?

Historians are unsure which specific agreement, if any, was predicted by this part of Daniel's prophecy (Daniel 10:1). This passage, recorded in the mid-sixth century BC, points to the life of Antiochus IV Epiphanes in the second century BC. It may refer to Antiochus's agreement with Egypt, which he had defeated early in his rule and made into a puppet state. Antiochus IV Epiphanes was known for his lavish spending and favoritism. The reference to "deceit" here may suggest the kind of back-door political corruption Antiochus's habits would have created.

Antiochus IV Epiphanes is remembered as one of the Jewish people's most infamous persecutors. During his rule, he prohibited Jewish worship practices and spitefully defiled the temple in Jerusalem. Commentators often see predictions about him as foreshadowing of the end times figure known as the Antichrist.