To misdeem is to misunderstand or mistake something. In Deuteronomy 32:27, the nations would fail to recognize that Israel’s ruin came because God had forsaken them for their apostasy.
Definition
To misdeem is to misunderstand, mistake, or fail to recognize the truth about something.
Biblical Usage
In Deuteronomy 32:27, the term describes the nations’ possible failure to recognize the true cause of Israel’s ruin: God had forsaken Israel because of its apostasy.
Historical Bible Dictionaries
Easton's Bible Dictionary
(Deut. 32:27, R.V.). The Authorized Version reads, “should behave themselves strangely;” i.e., not recognize the truth, misunderstand or mistake the cause of Israel’s ruin, which was due to the fact that God had forsaken them on account of their apostasy.