'Understanding' in the Bible

Prostitution, wine, and new wine take away the mind and the [spiritual] understanding.

I will not punish your daughters when they play the prostituteOr your brides when they commit adultery,For the men themselves slip away with prostitutes,And they offer sacrifices with temple prostitutes [who give their bodies in honor of the idol].So the people without understanding [stumble and fall and] come to ruin.

Ephraim also is like a silly dove, without heart or good sense;They call to Egypt [for help], they go to Assyria.

And now they sin more and more,And make for themselves molten images,Idols skillfully made from their silver [as it pleased them],All of them the work of the craftsmen.They say of these [very works of their hands], “Let those who sacrifice kiss and show respect to the calves [as if they were living gods]!”