(Deuteronomy 32:27, RSV). 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.
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Misdeem'". "Easton's Bible Dictionary".